Feature request

### Is your feature request related to a problem? Please describe.

Various reports regarding difficulty with long reading times on our current docs experience have been brought to our notice by the Solidity user community.

The most recent being [this tweet](https://x.com/0xkarmacoma/status/1816533877642629133).

The complain is that the current dark mode is strenuous and jarring for the eyes especially while spending prolonged hours reading through the docs.

### Describe the solution you'd like

A simple and quick solution would be to implement a blackout mode in addition to the current light and dark modes. Anyone who finds the dark mode rather intense can switch to the blackout mode for a more minimal reading experience.

Remix is a great example of this approach and has all three modes: light, dark, and black. Would is be possible to implement the black mode from the Remix website for our website as well?
https://remix-ide.readthedocs.io/en/latest/

### Describe alternatives you've considered

Other alternatives include changing the current dark mode to have a darker blue or grey or a simple back.

### Additional context

_No response_