Placeholder text in confirmation boxes

[Eliemer]

Bug Description

Went to delete some old encounters and found placeholder text for translations

Steps to Reproduce

1. Go to 'Content Manager'
2. Scroll down to 'Pending v2 imports'
3. Click on 'Delete'
4. See 'nav.common.cancel' and 'nav.v2import.delete' in popup

Affected Area

Cloud Sync

COMP/CON Version

3.0.7 alpha

Browser

Chrome

Screenshots / Console Errors