Only hide deploy status external link on small screens.

CHANGELOG

@@ -51,6 +51,7 @@ v 8.13.0 (unreleased)
   - Update ruby-prof to 0.16.2. !6026 (Elan Ruusamäe)
   - Fix unnecessary escaping of reserved HTML characters in milestone title. !6533
   - Add organization field to user profile
+  - Fix deploy status responsiveness error !6633
   - Fix resolved discussion display in side-by-side diff view !6575
   - Optimize GitHub importing for speed and memory
   - API: expose pipeline data in builds API (!6502, Guilherme Salazar)

app/views/projects/merge_requests/widget/_heading.html.haml

@@ -49,11 +49,11 @@
     .mr-widget-heading
       .ci_widget.ci-success
         = ci_icon_for_status("success")
-        %span.hidden-sm
+        %span
           Deployed to
           = succeed '.' do
             = link_to environment.name, environment_path(environment), class: 'environment'
           - external_url = environment.external_url
           - if external_url
-            = link_to external_url, target: '_blank' do
+            = link_to external_url, target: '_blank', class: 'hidden-xs' do
               = icon('external-link', text: "View on #{external_url.gsub(/\A.*?:\/\//, '')}", right: true)