Users: Change "Your Profile" and "My Profile" links in admin menu and toolbar...

Users: Change "Your Profile" and "My Profile" links in admin menu and toolbar to just "Profile" for consistency.

Props donmhico, bcworkz, seanchayes, mikeschroder, garrett-eclipse, akhileshsabharwal, ScottSmith, nacin, jenmylo, afercia, swissspidy, felix-edelmann, helen, melchoyce, karmatosed.
Fixes #26769.
Built from https://develop.svn.wordpress.org/trunk@47600


git-svn-id: https://core.svn.wordpress.org/trunk@47375 1a063a9b-81f0-0310-95a4-ce76da25c4cd