Tweak MR widget text some more.

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

@@ -7,4 +7,6 @@
         by #{link_to_member(@project, @merge_request.closed_event.author, avatar: true)}
         #{time_ago_with_tooltip(@merge_request.closed_event.created_at)}
     %p 
-      The changes were not merged into the target branch.
+      = succeed '.' do
+        The changes were not merged into
+        %span.label-branch= @merge_request.target_branch

app/views/projects/merge_requests/widget/open/_nothing.html.haml

@@ -2,7 +2,7 @@
   = icon("exclamation-triangle")
   Nothing to merge from
   %span.label-branch= source_branch_with_namespace(@merge_request)
-  to
+  into
   %span.label-branch= @merge_request.target_branch
 %p
   Please push new commits to the source branch or use a different target branch.

app/views/projects/merge_requests/widget/open/_reload.html.haml

 %h4
   = icon("exclamation-triangle")
-  This merge request could not be merged automatically
+  This merge request failed to be merged automatically
 
 %p
   Please reload the page to find out the reason.