Limit the length and parentheses nesting depth of a search query (#9277)

* Limit the length and parentheses nesting depth of a search query.

* Use exception

---------

Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>

app/Models/UserQuery.php

@@ -50,6 +50,7 @@ class FreshRSS_UserQuery {
 	 * 	publishLabelsInsteadOfTags?:bool,description?:string,imageUrl?:string} $query
 	 * @param array<FreshRSS_Category> $categories
 	 * @param array<FreshRSS_Tag> $labels
+	 * @throws Minz_BadRequestException if the search is too long or if the parentheses are nested too deeply
 	 */
 	public function __construct(array $query, array $categories, array $labels) {
 		$this->categories = [];