[#5453] make Profile tool be anchored before userstats, and fixes:

* make profile icon show up properly everywhere
* make profile tool show up in menus properly
* remove special-casing for the profile tool being first; relies
  on anchored feature now
* update first_mount() to remove simple case (no auth check), to check
  is_visible_to so it is consistent with other menu checks, and to
  remove invalid old ForgeWikiApp type check
7 files changed