Add unique HTML IDs to admin settings forms

This will help with getting rid of the console warnings about
non-unique html id attributes.

app/views/admin/application_settings/_account_and_limit.html.haml

-= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-account-settings'), html: { class: 'fieldset-form' } do |f|
+= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-account-settings'), html: { class: 'fieldset-form', id: 'account-settings' } do |f|
   = form_errors(@application_setting)
 
   %fieldset

app/views/admin/application_settings/_diff_limits.html.haml

-= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-merge-request-settings'), html: { class: 'fieldset-form' } do |f|
+= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-merge-request-settings'), html: { class: 'fieldset-form', id: 'merge-request-settings' } do |f|
   = form_errors(@application_setting)
 
   %fieldset

app/views/admin/application_settings/_eks.html.haml

@@ -9,7 +9,7 @@
       = _('Amazon EKS integration allows you to provision EKS clusters from GitLab.')
 
   .settings-content
-    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-eks-settings'), html: { class: 'fieldset-form' } do |f|
+    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-eks-settings'), html: { class: 'fieldset-form', id: 'eks-settings' } do |f|
       = form_errors(@application_setting)
 
       %fieldset

app/views/admin/application_settings/_external_authorization_service_form.html.haml

@@ -8,7 +8,7 @@
       = _('External Classification Policy Authorization')
   .settings-content
 
-    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-external-auth-settings'), html: { class: 'fieldset-form' } do |f|
+    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-external-auth-settings'), html: { class: 'fieldset-form', id: 'external-auth-settings' } do |f|
       = form_errors(@application_setting)
 
       %fieldset

app/views/admin/application_settings/_gitpod.html.haml

@@ -12,7 +12,7 @@
 
 
   .settings-content
-    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-gitpod-settings'), html: { class: 'fieldset-form' } do |f|
+    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-gitpod-settings'), html: { class: 'fieldset-form', id: 'gitpod-settings' } do |f|
       = form_errors(@application_setting)
 
       %fieldset

app/views/admin/application_settings/_kroki.html.haml

@@ -8,7 +8,7 @@
     %p
       = _('Allow rendering of diagrams in AsciiDoc and Markdown documents using %{link}.').html_safe % { link: link_to('Kroki', 'https://kroki.io', target: '_blank') }
   .settings-content
-    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-kroki-settings'), html: { class: 'fieldset-form' } do |f|
+    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-kroki-settings'), html: { class: 'fieldset-form', id: 'kroki-settings' } do |f|
       = form_errors(@application_setting) if expanded
 
       %fieldset

app/views/admin/application_settings/_plantuml.html.haml

@@ -8,7 +8,7 @@
     %p
       = _('Allow rendering of PlantUML diagrams in Asciidoc documents.')
   .settings-content
-    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-plantuml-settings'), html: { class: 'fieldset-form' } do |f|
+    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-plantuml-settings'), html: { class: 'fieldset-form', id: 'plantuml-settings' } do |f|
       = form_errors(@application_setting) if expanded
 
       %fieldset

app/views/admin/application_settings/_signin.html.haml

-= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-signin-settings'), html: { class: 'fieldset-form' } do |f|
+= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-signin-settings'), html: { class: 'fieldset-form', id: 'signin-settings' } do |f|
   = form_errors(@application_setting)
 
   %fieldset

app/views/admin/application_settings/_snowplow.html.haml

@@ -8,7 +8,7 @@
     %p
       = _('Configure the %{link} integration.').html_safe % { link: link_to('Snowplow', 'https://snowplowanalytics.com/', target: '_blank') }
   .settings-content
-    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-snowplow-settings'), html: { class: 'fieldset-form' } do |f|
+    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-snowplow-settings'), html: { class: 'fieldset-form', id: 'snowplow-settings' } do |f|
       = form_errors(@application_setting) if expanded
 
       %fieldset

app/views/admin/application_settings/_sourcegraph.html.haml

@@ -16,7 +16,7 @@
 
 
   .settings-content
-    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-sourcegraph-settings'), html: { class: 'fieldset-form' } do |f|
+    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-sourcegraph-settings'), html: { class: 'fieldset-form', id: 'sourcegraph-settings' } do |f|
       = form_errors(@application_setting)
 
       %fieldset

app/views/admin/application_settings/_terminal.html.haml

-= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-terminal-settings'), html: { class: 'fieldset-form' } do |f|
+= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-terminal-settings'), html: { class: 'fieldset-form', id: 'terminal-settings' } do |f|
   = form_errors(@application_setting)
 
   %fieldset

app/views/admin/application_settings/_terms.html.haml

-= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-terms-settings'), html: { class: 'fieldset-form' } do |f|
+= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-terms-settings'), html: { class: 'fieldset-form', id: 'terms-settings' } do |f|
   = form_errors(@application_setting)
 
   %fieldset

app/views/admin/application_settings/_third_party_offers.html.haml

@@ -8,7 +8,7 @@
     %p
       = _('Control the display of third party offers.')
   .settings-content
-    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-third-party-offers-settings'), html: { class: 'fieldset-form' } do |f|
+    = form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-third-party-offers-settings'), html: { class: 'fieldset-form', id: 'third-party-offers-settings' } do |f|
       = form_errors(@application_setting) if expanded
 
       %fieldset

app/views/admin/application_settings/_visibility_and_access.html.haml

-= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-visibility-settings'), html: { class: 'fieldset-form' } do |f|
+= form_for @application_setting, url: general_admin_application_settings_path(anchor: 'js-visibility-settings'), html: { class: 'fieldset-form', id: 'visibility-settings' } do |f|
   = form_errors(@application_setting)
 
   %fieldset

app/views/admin/application_settings/general.html.haml

@@ -90,7 +90,7 @@
     %p
       = _('Manage Web IDE features')
   .settings-content
-    = form_for @application_setting, url: general_admin_application_settings_path(anchor: "#js-web-ide-settings"), html: { class: 'fieldset-form' } do |f|
+    = form_for @application_setting, url: general_admin_application_settings_path(anchor: "#js-web-ide-settings"), html: { class: 'fieldset-form', id: 'web-ide-settings' } do |f|
       = form_errors(@application_setting)
 
       %fieldset