Remove extra space above milestone title

app/views/shared/milestones/_description.html.haml

 .detail-page-description.milestone-detail
-  %h2{ data: { qa_selector: "milestone_title_content" } }
-    .title
+  %h2.title{ data: { qa_selector: "milestone_title_content" } }
     = markdown_field(milestone, :title)
 
   - if milestone.try(:description).present?

changelogs/unreleased/psi-milestone-header-fix.yml

+---
+title: Remove excess space above milestone titles
+merge_request: 41749
+author:
+type: fixed