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

Conflicts:
- `.env.production.sample`:
  Copied upstream changes.
- `app/controllers/settings/identity_proofs_controller.rb`:
  Minor conflict due to glitch-soc's extra “enable_keybase” setting.
  Upstream removed keybase support altogether, so did the same.
- `app/controllers/well_known/keybase_proof_config_controller.rb`:
  Minor conflict due to glitch-soc's extra “enable_keybase” setting.
  Upstream removed keybase support altogether, so did the same.
- `lib/mastodon/statuses_cli.rb`:
  Minor conflict due to an optimization that wasn't shared between
  the two versions. Copied upstream's version.

config/routes.rb

@@ -25,7 +25,6 @@ Rails.application.routes.draw do
   get '.well-known/nodeinfo', to: 'well_known/nodeinfo#index', as: :nodeinfo, defaults: { format: 'json' }
   get '.well-known/webfinger', to: 'well_known/webfinger#show', as: :webfinger
   get '.well-known/change-password', to: redirect('/auth/edit')
-  get '.well-known/keybase-proof-config', to: 'well_known/keybase_proof_config#show'
 
   get '/nodeinfo/2.0', to: 'well_known/nodeinfo#show', as: :nodeinfo_schema
 
@@ -146,8 +145,6 @@ Rails.application.routes.draw do
       resource :confirmation, only: [:new, :create]
     end
 
-    resources :identity_proofs, only: [:index, :new, :create, :destroy]
-
     resources :applications, except: [:edit] do
       member do
         post :regenerate
@@ -334,9 +331,6 @@ Rails.application.routes.draw do
     # OEmbed
     get '/oembed', to: 'oembed#show', as: :oembed
 
-    # Identity proofs
-    get :proofs, to: 'proofs#index'
-
     # JSON / REST API
     namespace :v1 do
       resources :statuses, only: [:create, :show, :destroy] do