Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- app/controllers/admin/base_controller.rb
- app/controllers/filters_controller.rb
- app/controllers/invites_controller.rb
- app/controllers/settings/deletes_controller.rb
- app/controllers/settings/exports_controller.rb
- app/controllers/settings/follower_domains_controller.rb
- app/controllers/settings/migrations_controller.rb
- app/controllers/settings/notifications_controller.rb
- app/controllers/settings/preferences_controller.rb
- app/controllers/settings/two_factor_authentication/recovery_codes_controller.rb
- app/javascript/packs/public.js
- app/views/settings/profiles/show.html.haml

Conflicts were mostly due to the addition of body classes to the settings page,
this was caused by rejecting upstream changes for most of those files and
modifying Settings::BaseController instead.

Another cause of conflicts was the deletion of client-side checking of
display name / bio length, this was modified in app/javascript/core/settings.js
instead.

app/javascript/core/settings.js

@@ -1,30 +1,16 @@
 //  This file will be loaded on settings pages, regardless of theme.
 
-const { length } = require('stringz');
 const { delegate } = require('rails-ujs');
 import emojify from '../mastodon/features/emoji/emoji';
 
 delegate(document, '#account_display_name', 'input', ({ target }) => {
-  const nameCounter = document.querySelector('.name-counter');
-  const name        = document.querySelector('.card .display-name strong');
-
-  if (nameCounter) {
-    nameCounter.textContent = 30 - length(target.value);
-  }
+  const name = document.querySelector('.card .display-name strong');
 
   if (name) {
     name.innerHTML = emojify(target.value);
   }
 });
 
-delegate(document, '#account_note', 'input', ({ target }) => {
-  const noteCounter = document.querySelector('.note-counter');
-
-  if (noteCounter) {
-    noteCounter.textContent = 500 - length(target.value);
-  }
-});
-
 delegate(document, '#account_avatar', 'change', ({ target }) => {
   const avatar = document.querySelector('.card .avatar img');
   const [file] = target.files || [];