Translatation is missing for specific notifications in webhooks

[Android1338]

Describe the Bug

I'm using a Discord server with a few channels for BookStack notifications only and if I restore a revision in BookStack, I just receive the following message:
Julian activities.revision_restore

The same happens if I change admin settings in BookStack:
Julian activities.settings_update

Also if a maintenance has been started:
Julian activities.maintenance_action_run

Steps to Reproduce

1. Use "German" as language
2. Create a webhook, in my example for Discord
3. Make some changes in BookStack to receive alerts via Discord
4. Switch to Discord and you'll see non-translated messages

Expected Behaviour

I expected translated messages like ...

• Julian started a maintenance
• Julian restored a page

Screenshots or Additional Context

Browser Details

Firefox 112.0.2 (64-Bit) on Windows 10

Exact BookStack Version

v23.05

PHP Version

8.1.2

Hosting Environment

Ubuntu 22.04.2 LTS VPS, installed using official installation script

[ssddanbrown]

Thanks for reporting.
I've now added activity text for each activity type within commit f39938c.
This will be part of the next feature release.
Might take a little extra time for language variations to trickle down.