return unquoted empty array from /api/qvitter/mutes.json

lib/pleroma/web/router.ex

@@ -269,7 +269,7 @@ def user_fetcher(username) do
     get("/friendships/no_retweets/ids", TwitterAPI.Controller, :empty_array)
 
     get("/mutes/users/ids", TwitterAPI.Controller, :empty_array)
-    get("/qvitter/mutes", TwitterAPI.Controller, :empty_array)
+    get("/qvitter/mutes", TwitterAPI.Controller, :raw_empty_array)
 
     get("/externalprofile/show", TwitterAPI.Controller, :external_profile)
   end

lib/pleroma/web/twitter_api/twitter_api_controller.ex

@@ -404,6 +404,10 @@ def empty_array(conn, _params) do
     json(conn, Jason.encode!([]))
   end
 
+  def raw_empty_array(conn, _params) do
+    json(conn, [])
+  end
+
   def update_profile(%{assigns: %{user: user}} = conn, params) do
     params =
       if bio = params["description"] do

test/web/twitter_api/twitter_api_controller_test.exs

@@ -506,7 +506,7 @@ test "unimplemented mutes with credentials", %{conn: conn, user: current_user} d
         |> get("/api/qvitter/mutes.json")
       current_user = Repo.get(User, current_user.id)
 
-      assert "[]" = json_response(conn, 200)
+      assert [] = json_response(conn, 200)
     end
   end