fix(files): fallback to action id if displayname is empty

This fixes invalid error messages if the action has an empty
displayname, often the case for inline actions

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

apps/files/src/utils/actionUtils.ts

@@ -48,7 +48,7 @@ export async function executeAction(action: IFileAction) {
 
 	let displayName = action.id
 	try {
-		displayName = action.displayName(context)
+		displayName = action.displayName(context) || displayName
 	} catch (error) {
 		logger.error('Error while getting action display name', { action, error })
 	}