feature: light mode

[JulianKominovic]

Hi! I'm opening my first open source PR to enable light mode in the docs and home page 🤠.
The dark theme remains the same.
Let me know if you want to change something, I'm open to comments 👍

Changes log

• Added some tailwind variables to the light theme.
• Added the theme context
• Theme switch button is located on the navbar
• Some logos were SVGs and the fill colors were hardcoded. Now some of the SVG logos are components and inherits the color of the parent (I didn't convert all the icons to react component, just the conflicting ones)
• The navbar was a bit messy (just the layout and positioning). In the current state I couldn't place the icon without visual bugs so I've done a mini refactor there deleting all the positions hacks of the search bar and the logo.

Evidence

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
zero-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 10, 2025 1:20am

[aboodman]

I have traditionally been against this, but I think I'm ready to try it.

@alexhking I think maybe the logo should be a step or two lighter? Something about the name "zero" in this bright context says '75% grey' to me, not black.

@JulianKominovic I don't think the toggle should be top-right, but down here:

I realize this will make it harder to find but I still think we should try it.

I think we should set it as defaulted to sync to theme.

@alexhking this highlight color doesn't feel right to me:

The logo has shifted up about 5px in the new layout and is no longer aligned w/ the buttons:

And probably various other things as you think appropriate @alexhking

@JulianKominovic - feel free to do any of these or not. If not, we will take over np. Thank you very much for the contribution.

[alexhking]

@JulianKominovic Thanks so much for the contribution. Have been reviewing this and I'd like to make a few adjustments to the overall style and positioning of things. Will update this branch and then we can merge.

[JulianKominovic]

Hi @alexhking @aboodman! Sorry for the late reply, it's been a very long week. Sure, go ahead. Let me know if you need anything 🫡