fix(fediverse): do not cache remote action form + fix typo on post routes for passing post uuid

+ remove unnecessary session->start() directive

modules/Fediverse/Controllers/PostController.php

@@ -50,7 +50,7 @@ class PostController extends Controller
 
     public function _remap(string $method, string ...$params): mixed
     {
-        if (count($params) === 0) {
+        if ($params === []) {
             throw PageNotFoundException::forPageNotFound();
         }