Fixes issue search form hiding when current_user is nil (guest user)

CHANGELOG

@@ -168,6 +168,7 @@ v 8.8.0
   - Fixed advice on invalid permissions on upload path !2948 (Ludovic Perrine)
   - Allows MR authors to have the source branch removed when merging the MR. !2801 (Jeroen Jacobs)
   - When creating a .gitignore file a dropdown with templates will be provided
+  - Shows the issue/MR list search/filter form and corrects the mobile styling for guest users. #17562
 
 v 8.7.7
   - Fix import by `Any Git URL` broken if the URL contains a space

app/assets/stylesheets/framework/nav.scss

@@ -171,6 +171,7 @@
     > form {
       display: inline-block;
       margin-top: -1px;
+      margin-bottom: 12px;
     }
 
     .icon-label {
@@ -207,7 +208,7 @@
 
     @media (max-width: $screen-xs-max) {
       padding-bottom: 0;
-
+      width: 100%;
       .btn, form, .dropdown, .dropdown-menu-toggle, .form-control {
         margin: 0 0 10px;
         display: block;
@@ -238,16 +239,6 @@
         margin: 0;
       }
     }
-
-    /* Small devices (tablets, 768px and lower) */
-    @media (max-width: $screen-sm-max) {
-      width: 100%;
-      text-align: left;
-
-      input {
-        width: 300px;
-      }
-    }
   }
 }
 

app/views/projects/issues/index.html.haml

@@ -12,7 +12,7 @@
         = icon('rss')
         %span.icon-label
           Subscribe
-      = render 'shared/issuable/search_form', path: namespace_project_issues_path(@project.namespace, @project)
+    = render 'shared/issuable/search_form', path: namespace_project_issues_path(@project.namespace, @project)
     - if can? current_user, :create_issue, @project
       = link_to new_namespace_project_issue_path(@project.namespace, @project, issue: { assignee_id: @issuable_finder.assignee.try(:id), milestone_id: @issuable_finder.milestones.try(:first).try(:id) }), class: "btn btn-new", title: "New Issue", id: "new_issue_link" do
         = icon('plus')