fixes an error if a user sets the language to german and then opens the selection screen. This is related to localazy and its exporting behavier of arrays with only one element.
adds translations to the headlines in the add package/group modals which are accessed from within the add vocab page.
Motivation and Context
Screenshots / GIFs (if appropriate):
Checklist
[x] I have read the CONTRIBUTING document.
[x] I have considered the accessibility of my changes (i.e. did I add proper content descriptions to images, or run my changes with talkback enabled?)
Description
Motivation and Context
Screenshots / GIFs (if appropriate):
Checklist
Resolves