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

Conflicts:
- `app/controllers/home_controller.rb`:
  Upstream made it so `/web` is available to non-logged-in users
  and `/` redirects to `/web` instead of `/about`.
  Kept our version since glitch-soc's WebUI doesn't have what's
  needed yet and I think /about is still a much better landing
  page anyway.
- `app/models/form/admin_settings.rb`:
  Upstream added new settings, and glitch-soc had an extra setting.
  Not really a conflict.
  Added upstream's new settings.
- `app/serializers/initial_state_serializer.rb`:
  Upstream added a new `server` initial state object.
  Not really a conflict.
  Merged upstream's changes.
- `app/views/admin/settings/edit.html.haml`:
  Upstream added new settings.
  Not really a conflict.
  Merged upstream's changes.
- `app/workers/scheduler/feed_cleanup_scheduler.rb`:
  Upstream refactored that part and removed the file.
  Ported our relevant changes into `app/lib/vacuum/feeds_vacuum.rb`
- `config/settings.yml`:
  Upstream added new settings.
  Not a real conflict.
  Added upstream's new settings.

config/routes.rb

@@ -414,6 +414,8 @@ Rails.application.routes.draw do
 
           resource :history, only: :show
           resource :source, only: :show
+
+          post :translate, to: 'translations#create'
         end
 
         member do
@@ -662,7 +664,9 @@ Rails.application.routes.draw do
 
   get '/about',        to: 'about#show'
   get '/about/more',   to: 'about#more'
-  get '/terms',        to: 'about#terms'
+
+  get '/privacy-policy', to: 'privacy#show', as: :privacy_policy
+  get '/terms',          to: redirect('/privacy-policy')
 
   match '/', via: [:post, :put, :patch, :delete], to: 'application#raise_not_found', format: false
   match '*unmatched_route', via: :all, to: 'application#raise_not_found', format: false