fix(ui): Move NavBar to dedicated component folder and make it sticky

[moshams272]

Summary

This PR makes the NavBar component sticky in top.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
webpack-doc-kit	Ready	Preview, Comment	Jul 20, 2026 3:01pm

[avivkeller]

Seems fine to me, just note that this Navbar wasn't designed to be sticky, iirc, cc @ovflowd

[bjohansebas]

Hmm, it feels a bit strange to me now that it's sticky. I personally prefer when websites don't implement sticky navbar, but that's just my opinion. If you all think it should be sticky, then go for it.

[moshams272]

Hmm, it feels a bit strange to me now that it's sticky. I personally prefer when websites don't implement sticky navbar, but that's just my opinion. If you all think it should be sticky, then go for it.

What about Hide/Show on Scroll Navbar?!
As scrolling down will hide it, otherwise will show it.

[ovflowd]

@avivkeller I saw this was closed, was this done somewhere else?

[avivkeller]

My understanding was that for parity with doc-kit, we didn't want a sticky navbar