Move find file URL out of global variable

Part of #34903

app/assets/javascripts/shortcuts.js

 /* eslint-disable func-names, space-before-function-paren, no-var, prefer-rest-params, wrap-iife, quotes, prefer-arrow-callback, consistent-return, object-shorthand, no-unused-vars, one-var, one-var-declaration-per-line, no-else-return, comma-dangle, max-len */
 /* global Mousetrap */
-/* global findFileURL */
 import Cookies from 'js-cookie';
 
 import findAndFollowLink from './shortcuts_dashboard_navigation';
@@ -20,6 +19,7 @@ import findAndFollowLink from './shortcuts_dashboard_navigation';
 
       const $globalDropdownMenu = $('.global-dropdown-menu');
       const $globalDropdownToggle = $('.global-dropdown-toggle');
+      const findFileURL = document.body.dataset.findFile;
 
       $('.global-dropdown').on('hide.bs.dropdown', () => {
         $globalDropdownMenu.removeClass('shortcuts');

app/helpers/projects_helper.rb

@@ -518,4 +518,12 @@ module ProjectsHelper
 
     current_application_settings.restricted_visibility_levels || []
   end
+
+  def find_file_path
+    return unless @project && !@project.empty_repo?
+
+    ref = @ref || @project.repository.root_ref
+
+    project_find_file_path(@project, ref)
+  end
 end

app/views/layouts/application.html.haml

 !!! 5
 %html{ lang: I18n.locale, class: "#{page_class}" }
   = render "layouts/head"
-  %body{ class: @body_class, data: { page: body_data_page, project: "#{@project.path if @project}", group: "#{@group.path if @group}" } }
+  %body{ class: @body_class, data: { page: body_data_page, project: "#{@project.path if @project}", group: "#{@group.path if @group}", find_file: find_file_path } }
     = render "layouts/init_auto_complete" if @gfm_form
     - if show_new_nav?
       = render "layouts/header/new"

app/views/layouts/header/_default.html.haml

@@ -91,8 +91,3 @@
       = yield :header_content
 
 = render 'shared/outdated_browser'
-
-- if @project && !@project.empty_repo?
-  - if ref = @ref || @project.repository.root_ref
-    :javascript
-      var findFileURL = "#{project_find_file_path(@project, ref)}";