Provide capabilities via initialstate

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

lib/private/Template/JSConfigHelper.php

@@ -305,6 +305,7 @@ class JSConfigHelper {
 		}
 
 		$this->initialStateService->provideInitialState('core', 'config', $config);
+		$this->initialStateService->provideInitialState('core', 'capabilities', $capabilities);
 
 		// Allow hooks to modify the output values
 		\OC_Hook::emit('\OCP\Config', 'js', ['array' => &$array]);