Rename Code tab to Repo

Closes #18830

app/views/layouts/nav/_project.html.haml

@@ -38,9 +38,9 @@
 
     - if project_nav_tab? :files
       = nav_link(controller: %w(tree blob blame edit_tree new_tree find_file commit commits compare repositories tags branches releases network)) do
-        = link_to project_files_path(@project), title: 'Code',  class: 'shortcuts-tree' do
+        = link_to project_files_path(@project), title: 'Repo',  class: 'shortcuts-tree' do
           %span
-            Code
+            Repo
 
     - if project_nav_tab? :pipelines
       = nav_link(controller: [:pipelines, :builds, :environments]) do

features/steps/project/project_find_file.rb

@@ -13,12 +13,12 @@ class Spinach::Features::ProjectFindFile < Spinach::FeatureSteps
   end
 
   step 'I should see "find file" page' do
-    ensure_active_main_tab('Code')
+    ensure_active_main_tab('Repo')
     expect(page).to have_selector('.file-finder-holder', count: 1)
   end
 
   step 'I fill in Find by path with "git"' do
-    ensure_active_main_tab('Code')
+    ensure_active_main_tab('Repo')
     expect(page).to have_selector('.file-finder-holder', count: 1)
   end
 

features/steps/shared/project_tab.rb

@@ -8,8 +8,8 @@ module SharedProjectTab
     ensure_active_main_tab('Project')
   end
 
-  step 'the active main tab should be Code' do
-    ensure_active_main_tab('Code')
+  step 'the active main tab should be Repo' do
+    ensure_active_main_tab('Repo')
   end
 
   step 'the active main tab should be Graphs' do