Remove unnecessary paddings at profile user bio block.

This commit closes #51807 issue.

app/assets/stylesheets/pages/profile.scss

@@ -98,7 +98,6 @@
   // Limits the width of the user bio for readability.
   max-width: 600px;
   margin: 10px auto;
-  padding: 0 16px;
 }
 
 .user-avatar-button {

changelogs/unreleased/profile-fixing.yml

+---
+title: Fix bottom paddings of profile header and some markup updates of profile
+merge_request: 23168
+author: Harry Kiselev
+type: other