Make $_REQUEST processing independent of sub-calls

- Move HTTPInputData::process() into App::runFrontend()
- Pass $_REQUEST (including processed Input) to every Module method
- Delete $_POST parameters at Module post() calls because of $_REQUEST

src/Module/Admin/Users/Pending.php

@@ -33,7 +33,7 @@ use Friendica\Util\Temporal;
 
 class Pending extends BaseUsers
 {
-	protected function post(array $request = [], array $post = [])
+	protected function post(array $request = [])
 	{
 		self::checkAdminAccess();