create button to stop streaming of response

[ssjdan27]

Purpose

These changes will allow the user to stop the streaming of a response if they so choose. This is helpful if the response does not seem to be useful or if the LLM is hallucinating. The approach I used to implement this may not be perfect, but I would love to get some constructive feedback on this @pamelafox.

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.

[ssjdan27]

@microsoft-github-policy-service agree

[pamelafox]

Thanks for the PR! I will take a look soon. Am also interested to see feedback from other folks in the thread for #1221

[pamelafox]

This PR requires an update now that the internationalization change is in. I made the necessary changes but could not push them to your PR since your PR is off a "main" branch. You can see the changes I made here:
https://github.com/Azure-Samples/azure-search-openai-demo/compare/main...pamelafox:azure-search-openai-demo:stopmerge?expand=1
@ssjdan27 Could you bring in those changes?

[ssjdan27]

I've successfully merged the changes you made, @pamelafox, into this PR. Please let me know if there's anything else I should address with these updates!

[pamelafox]

Why is it that we need to have this if/else with a whole Answer component configuration, versus sending in a parameter to Answer?