Merge pull request #40675 from nextcloud/fix/unifiedsearch/search-0

fix(unifiedsearch): Allow searching for "0"

core/Controller/UnifiedSearchController.php

@@ -100,7 +100,7 @@ public function search(string $providerId,
 						   ?int $limit = null,
 						   $cursor = null,
 						   string $from = ''): DataResponse {
-		if (empty(trim($term))) {
+		if (trim($term) === "") {
 			return new DataResponse(null, Http::STATUS_BAD_REQUEST);
 		}
 		[$route, $routeParameters] = $this->getRouteInformation($from);