Missing title for composer modal actions

[ChristophWurst]

Steps to reproduce

1. Open the app
2. Composer a message
3. Hover one of the three actions at the top right of the modal

Expected behavior

Browser shows the title of the action

Actual behavior

No title

Mail app version

4.3

Nextcloud version

No response

Mailserver or service

No response

Operating system

No response

PHP engine version

None

Nextcloud memory caching

No response

Web server

None

Database

None

Additional info

No response