R1:42896f9f9044

Rename all ProfilePanels into ProfileMenuItems

Summary: Ref T11957.

Test Plan:
- Viewed an existing project profile.
- Viewed a user profile.
- Created a new project.
- Edited a profile menu.
- Added new profile items.
- Grepped for renamed symbols.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T11957

Differential Revision: https://secure.phabricator.com/D17028