fix: various small fixes (#3519)

lib/Logger.php

@@ -55,6 +55,8 @@ final class Logger
                 'Unable to find channel. The channel is non-existing or non-public',
                 // fb
                 'This group is not public! RSS-Bridge only supports public groups!',
+                // tiktok 404
+                'https://www.tiktok.com/@',
             ];
             foreach ($ignoredExceptions as $ignoredException) {
                 if (str_starts_with($e->getMessage(), $ignoredException)) {