🐛 Bug - Monochrome Theme Reverts to Color

[wicksipedia]

Requested by: @wicksipedia via YakShaver.ai 🦬
cc: @wicksipedia, @Marxoz, @isaaclombardssw, @joshbermanssw

Hi Team!

  Url from screen share: https://localhost:3000/admin/index.html#/--/docs

Pain

When the monochrome theme is selected in the settings of the Tina-docs repository, the theme briefly flashes monochrome before reverting to color. Additionally, the theme dropdown displays 'light' or 'default' instead of 'monochrome'.

Acceptance Criteria

1. The monochrome theme remains consistent across all pages once selected.
2. The theme dropdown accurately reflects the selected theme as 'monochrome'.
3. No unexpected theme changes occur when navigating through the site.

Reproduce Steps

1. Navigate to the settings of the Tina-docs repository.
2. Select the monochrome theme and save the settings.
3. Navigate to the docs section and observe the theme behavior.
4. Check the theme dropdown to verify the displayed theme option.

Screenshot

Figure: Theme selection bug: monochrome flashes then reverts to color

[isaaclombardssw]

Got a working solution at #194 but maybe not the best implementation, needs review

[Marxoz]

As discussed, see whether there is a better solution