[DOC]: Fix anchors in links to docs.trychroma.com

[ahmedaabouzied]

Closes #3395

Description of changes

• The app context responsible of redirecting pages to either the JS docs or python docs was stripping out the hash (anchor) if you're navigating to a documentation page with an anchor such as https://docs.trychroma.com/reference/python/client#deletecollection.
• This PR fixes this issue by appending the hash to the URL being redirected to if it's valid to append the hash.
• Also cleaning up a bit by removing a not used import of react useContext.

Test plan

N/A

Documentation Changes

Are all docstrings for user-facing APIs updated if required? Do we need to make documentation changes in the docs repository?
N/A

[github-actions]

Reviewer Checklist

Please leverage this checklist to ensure your code review is thorough before approving

Testing, Bugs, Errors, Logs, Documentation

• Can you think of any use case in which the code does not behave as intended? Have they been tested?
• Can you think of any inputs or external events that could break the code? Is user input validated and safe? Have they been tested?
• If appropriate, are there adequate property based tests?
• If appropriate, are there adequate unit tests?
• Should any logging, debugging, tracing information be added or removed?
• Are error messages user-friendly?
• Have all documentation changes needed been made?
• Have all non-obvious changes been commented?

System Compatibility

• Are there any potential impacts on other parts of the system or backward compatibility?
• Does this change intersect with any items on our roadmap, and if so, is there a plan for fitting them together?

Quality

• Is this code of a unexpectedly high quality (Readability, Modularity, Intuitiveness)

[tazarov]

@ahmedaabouzied, thanks for this. I ran your code locally and noticed a next.js error in the use of window - Error: window is not defined and it kind of makes sense if this is not in browser so I moved the anchor handling logic inside the useEffect and now it works like a charm without gobbling the anchors when the page is loaded.

[tazarov]

@itaismith PTAL. For some reason this does not trigger vercel preview but locally npm run dev things seem to work.