Members page layout looks broken

Summary

When viewing the Members page as a non-Master or non-Owner the layout looks broken:

• The “Members” title looks weird because there is no description under it
• The members search box and order select break into another line because of the project title length

Relevant logs and/or screenshots

Non-Master or Non-Owner	Master or Owner

Output of checks

This bug happens on GitLab.com

Possible fixes

The “Members” title looks weird because there is no description under it

Add a description like: “Members can be added by project Masters or Owners”

The members' search box and order select break into another line because of the project title length

1. Reduce the width of the search box
2. Rephrase the panel title to “Members of…”
3. Truncate the project title if it's too big