Provide light theme for Gleam website (content area)

[psy-q]

Some areas of the Gleam website have no light background option (or I couldn't find one), e.g.:

• Docs (including Writing Gleam)
• Community
• News section including blog post background

Did I just not find the toggle? It doesn't respect my browser preference for light theme, at least.

If there's no light theme currently, I would suggest adding one, as there are reasons that can make the current text needlessly difficult to read/parse (personal preference, medical issues, visible and invisible disabilities etc.).

A client-side solution like a color inversion plugin-in doesn't help that much; parts of the website interleave light and dark elements so it will always be wrong.

[lpil]

Hello! Yes, we do not have a light mode. The main problem is a lack of designers contributing to the project. Hopefully some will help out in future and we can iterate on some designs with them for this and the other outstanding items of design work.