reword html titles for merge requests and issues

CHANGELOG

@@ -77,6 +77,7 @@ v 8.13.0 (unreleased)
   - Retouch environments list and deployments list
   - Add Container Registry on/off status to Admin Area !6638 (the-undefined)
   - Grouped pipeline dropdown is a scrollable container
+  - Cleanup issue and merge request page titles (Greg Laubenstein)
 
 v 8.12.5 (unreleased)
 

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

-- page_title "Edit", "#{@issue.title} (##{@issue.iid})", "Issues"
+- page_title "Edit", "#{@issue.to_reference} #{@issue.title}", "Issues"
 
 %h3.page-title
   Edit Issue ##{@issue.iid}

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

-- page_title           "#{@issue.title} (##{@issue.iid})", "Issues"
+- page_title           "#{@issue.to_reference} #{@issue.title}", "Issues"
 - page_description     @issue.description
 - page_card_attributes @issue.card_attributes
 

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

-- page_title           "#{@merge_request.title} (#{@merge_request.to_reference})", "Merge Requests"
+- page_title           "#{@merge_request.to_reference} #{@merge_request.title}", "Merge Requests"
 - page_description     @merge_request.description
 - page_card_attributes @merge_request.card_attributes
 - content_for :page_specific_javascripts do

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

-- page_title "Edit", "#{@merge_request.title} (#{@merge_request.to_reference}", "Merge Requests"
+- page_title "Edit", "#{@merge_request.to_reference} #{@merge_request.title}", "Merge Requests"
 
 %h3.page-title
   Edit Merge Request #{@merge_request.to_reference}