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

Conflicts:
- app/controllers/settings/follower_domains_controller.rb
  Removed upstream. Did the same here. Maybe we should not have?
- config/locales/en.yml
  Upstream removed the “Authorized followers” page and associated
  translations. This is too close in the file to our glitch-soc-specific
  “flavour” string. No actual conflict.
- config/locales/ja.yml
  Same as above.
- config/locales/pl.yml
  Same as above.
- config/navigation.rb
  No real conflict. New route added too close to the glitch-soc-specific
  “flavours” one.
- config/webpack/configuration.js
  Upstream refactored the webpack(er) configuration quite a bit.
  Tried to keep up.
- config/webpack/loaders/babel.js
  Upstream refactored the webpack(er) configuration quite a bit.
  Tried to keep up.
  The contents of this file have been moved to package.json.
- config/webpack/shared.js
  Upstream refactored the webpack(er) configuration quite a bit.
  Tried to keep up.
- config/webpacker.yml
  Upstream refactored the webpack(er) configuration quite a bit.
  Tried to keep up.
- jest.config.js
  The contents of this file have been moved to package.json.
- package.json
  Upstream refactored the webpack(er) configuration quite a bit.
  Tried to keep up.
- yarn.lock
  Upstream refactored the webpack(er) configuration quite a bit.
  Tried to keep up.

config/routes.rb

@@ -107,8 +107,6 @@ Rails.application.routes.draw do
       resource :confirmation, only: [:new, :create]
     end
 
-    resource :follower_domains, only: [:show, :update]
-
     resources :applications, except: [:edit] do
       member do
         post :regenerate
@@ -132,6 +130,7 @@ Rails.application.routes.draw do
   resources :emojis, only: [:show]
   resources :invites, only: [:index, :create, :destroy]
   resources :filters, except: [:show]
+  resource :relationships, only: [:show, :update]
 
   get '/public', to: 'public_timelines#show', as: :public_timeline
   get '/media_proxy/:id/(*any)', to: 'media_proxy#show', as: :media_proxy
@@ -292,6 +291,7 @@ Rails.application.routes.draw do
       resources :custom_emojis, only: [:index]
       resources :suggestions, only: [:index, :destroy]
       resources :scheduled_statuses, only: [:index, :show, :update, :destroy]
+      resources :preferences, only: [:index]
 
       resources :conversations, only: [:index, :destroy] do
         member do