Add API endpoints to view and revoke one's quoted posts (#35578)

config/routes/api.rb

@@ -18,6 +18,12 @@ namespace :api, format: false do
         resource :reblog, only: :create
         post :unreblog, to: 'reblogs#destroy'
 
+        resources :quotes, only: :index do
+          member do
+            post :revoke
+          end
+        end
+
         resource :favourite, only: :create
         post :unfavourite, to: 'favourites#destroy'