Fix filter label tooltip HTML rendering

CHANGELOG

@@ -10,6 +10,7 @@ v 8.11.0 (unreleased)
   - Add support for relative links starting with ./ or / to RelativeLinkFilter (winniehell)
   - Fix CI status icon link underline (ClemMakesApps)
   - The Repository class is now instrumented
+  - Fix filter label tooltip HTML rendering (ClemMakesApps)
   - Cache the commit author in RequestStore to avoid extra lookups in PostReceive
   - Expand commit message width in repo view (ClemMakesApps)
   - Cache highlighted diff lines for merge requests

app/assets/stylesheets/pages/labels.scss

@@ -182,6 +182,17 @@
   .btn {
     color: inherit;
   }
+
+  a.btn {
+    padding: 0;
+
+    .has-tooltip {
+      top: 0;
+      border-top-right-radius: 0;
+      border-bottom-right-radius: 0;
+      line-height: 1.1;
+    }
+  }
 }
 
 .label-options-toggle {

app/views/shared/_labels_row.html.haml

 - labels.each do |label|
   %span.label-row.btn-group{ role: "group", aria: { label: label.name }, style: "color: #{text_color_for_bg(label.color)}" }
-    = link_to label.name, label_filter_path(@project, label, type: controller.controller_name),
-      class: "btn btn-transparent has-tooltip",
-      style: "background-color: #{label.color};",
-      title: escape_once(label.description),
-      data: { container: "body" }
+    = link_to_label(label, css_class: 'btn btn-transparent')
     %button.btn.btn-transparent.label-remove.js-label-filter-remove{ type: "button", style: "background-color: #{label.color};", data: { label: label.title } }
       = icon("times")