fix: Properly pass array instead of stdClass for initial state

fixes #989

Signed-off-by: Julius Härtl <jus@bitgrid.net>

Author: juliusknorr

lib/Controller/PageController.php

@@ -68,7 +68,7 @@ public function index() : TemplateResponse {
 
 		$this->initialState->provideInitialState(
 			'config',
-			\OCP\Server::get(SettingsService::class)->getPublic($this->userSession->getUser()->getUID())
+			(array)\OCP\Server::get(SettingsService::class)->getPublic($this->userSession->getUser()->getUID())
 		);
 
 		$this->initialState->provideInitialState(