Externalize strings in merge request tabs

app/views/projects/merge_requests/show.html.haml

@@ -37,21 +37,21 @@
           %ul.merge-request-tabs.nav-tabs.nav.nav-links.scrolling-tabs
             %li.notes-tab.qa-notes-tab
               = tab_link_for @merge_request, :show, force_link: @commit.present? do
-                Discussion
+                = _("Discussion")
                 %span.badge.badge-pill= @merge_request.related_notes.user.count
             - if @merge_request.source_project
               %li.commits-tab
                 = tab_link_for @merge_request, :commits do
-                  Commits
+                  = _("Commits")
                   %span.badge.badge-pill= @commits_count
             - if @pipelines.any?
               %li.pipelines-tab
                 = tab_link_for @merge_request, :pipelines do
-                  Pipelines
+                  = _("Pipelines")
                   %span.badge.badge-pill.js-pipelines-mr-count= @pipelines.size
             %li.diffs-tab.qa-diffs-tab
               = tab_link_for @merge_request, :diffs do
-                Changes
+                = _("Changes")
                 %span.badge.badge-pill= @merge_request.diff_size
         .d-inline-flex.flex-wrap
           #js-vue-discussion-filter{ data: { default_filter: current_user&.notes_filter_for(@merge_request),

locale/gitlab.pot

@@ -3259,6 +3259,9 @@ msgstr ""
 msgid "Discuss a specific suggestion or question that needs to be resolved"
 msgstr ""
 
+msgid "Discussion"
+msgstr ""
+
 msgid "Dismiss"
 msgstr ""