[docs] Update chproxy documentation design

[pixelastic]

Description

This will update the design of the website, to include the new logo, and update colors accordingly.

Check this live here: https://chproxy-pr-213.onrender.com/

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

Comparison

The current website

The new website

And mobile mode

Further comments

The website is built using Next v2, and more specifically the Nuxt Content plugin with the Nuxt Content Docs Theme. Those specific plugins and version seem to be no longer maintained (Nuxt is now on v3, and the Docs Theme has been officially deprecated).

This means that updating the theme colors required me to do some hacky CSS stuff, as the plugin itself doesn't allow for an easy way to change the colors (except the link colors). So I had to add my own custom CSS file, that artificially overwrite the selector of the various elements I wanted to change. Said element most of the time didn't have any semantic attribute to ease selection, so I had to use presentational attribute for some selectors. As I said, it's hacky.

Please let me know if you see any issues (like wrong colors, most probably default green showing up), and I'll fix them.

[render]

Your Render PR Server URL is https://chproxy-pr-213.onrender.com.

Follow its progress at https://dashboard.render.com/static/srv-cc4d30kgqg4agm9d8bbg.