* Reinstate avatar component cleanup
This was reverted due to a bug, fixed in the subsequent commit.
* Kill additional wrapper divs around avatars
This also fixes a bug where the `w-8` answer row wrapper div was
constraining the width of the `w-10` avatar, leading it to be `w-8`
and `h-10` and appear as an oval.
* Remove unnecessary classes on avatar img
I don't believe these have any visible effect.
* Don't apply Tailwind 'avatar' class in menu
We don't use this class elsewhere when displaying avatars (instead our
avatar has manual styles that do the stuff Tailwind is trying to do)
and it just assigns a weird size that we don't want.
If we want to use the Tailwind avatar styles we should refactor further.
* Remove unnecessary avatar wrapper div
* Remove old prop from avatar
* Show bio, banner, and social links on user page
* Minor tweaks
* Allow edits to their user page
* Fix build; add a white ring around users
* From userpage, link to /profile (which is always editable now)
* Update userpage SEO
* Clean up Profile menu
* Fixes according to Stephen's code review
