feat: Add Danish (da-DK) translations.json and update config.json

[EMjetrot]

Purpose

This update introduces Danish language support in the application, including translations of the user interface and labels into Danish by a native speaker. This enhancement provides a more accessible experience for Danish-speaking users.

Does this introduce a breaking change?

When developers merge from main and run the server, azd up, or azd deploy, will this produce an error?
If you're not sure, try it out on an old environment.

[ ] Yes
[x] No

Does this require changes to learn.microsoft.com docs?

This repository is referenced by this tutorial
which includes deployment, settings and usage instructions. If text or screenshot need to change in the tutorial,
check the box below and notify the tutorial author. A Microsoft employee can do this for you if you're an external contributor.

[ ] Yes
[x] No

Type of change

[ ] Bugfix
[x] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

Code quality checklist

See CONTRIBUTING.md for more details.

• The current tests all pass (python -m pytest).
• I added tests that prove my fix is effective or that my feature works
• I ran python -m pytest --cov to verify 100% coverage of added lines
• I ran python -m mypy to check for type errors
• I either used the pre-commit hooks or ran ruff and black manually on my code.

Screenshots

[EMjetrot]

@microsoft-github-policy-service agree

[pamelafox]

Thanks for all the screenshots! I'll ask same questions I asked on the recent Dutch PR:

I assume that you wrote these translations yourself, i.e. you're a native Danish speaker?

Will you be available to translate strings in the future, i.e. can I tag you on PRs that add new strings? I don't know if I have any Danish speaking colleagues, so we need to make sure we have a strategy to continue support for da-DK.

Thanks!

[EMjetrot]

@pamelafox Yes, I am a native Danish speaker and feel free to tag me on PRs that add new Danish strings if needed :)

[pamelafox]

Great, merged! Thank you!