Add warning after language creation for Blazor #13592
Description
Resolves #11240
TODO: Describe what this PR has changed, add screenshot or animated GIF if available, write if it is a breaking change, and how to fix the breaking changes for existing applications if so.
After re-running the application:
Checklist
- I fully tested it as developer / designer and created unit / integration tests
- I documented it (or no need to document or I will create a separate documentation issue)
- I worked with the design team to get their idea for UI/UX design (or no need to design for this PR)
- I've assigned reviewer, related labels and set a milestone for this PR
How to test it?
Run test-app and test creating an African language like 'afar'