fix: Ensure app discover section is returned as list

Signed-off-by: Ferdinand Thiessen <[email protected]>

Author: susnux

lib/private/App/AppStore/Fetcher/AppDiscoverFetcher.php

@@ -50,7 +50,7 @@ public function get($allowUnstable = false) {
 		$entries = parent::get(false);
 		$now = new DateTimeImmutable();
 
-		return array_filter($entries, function (array $entry) use ($now, $allowUnstable) {
+		$entires = array_filter($entries, function (array $entry) use ($now, $allowUnstable) {
 			// Always remove expired entries
 			if (isset($entry['expiryDate'])) {
 				try {
@@ -79,6 +79,9 @@ public function get($allowUnstable = false) {
 			// Otherwise the entry is not time limited and should stay
 			return true;
 		});
+
+		// Make sure the indices are sequential again after filtering
+		return array_values($entries);
 	}
 
 	public function getETag(): ?string {