Merge pull request #53572 from nextcloud/backport/53321/stable30

[stable30] [FilesList] Use the correct theming instance name from capabilities

Author: susnux

apps/files/src/views/FilesList.vue

@@ -443,7 +443,7 @@ export default defineComponent({
 		 * Update the window title to match the page heading
 		 */
 		pageHeading() {
-			document.title = `${this.pageHeading} - ${getCapabilities().theming?.productName ?? 'Nextcloud'}`
+			document.title = `${this.pageHeading} - ${getCapabilities().theming?.name ?? 'Nextcloud'}`
 		},
 
 		/**