Light / dark mode for documentation

[nbrosse]

📚 Documentation

The current lightning documentation is in dark mode https://lightning.ai/docs/pytorch/stable/. Would it be possible to switch from dark to light mode (or vice versa) ? It should not be difficult to implement such a feature and would improve the reading comfort. Thanks a lot !

cc @borda

[juliawang22]

Seconding this. Especially because the math equations are still in black, so when it is in dark mode you can't read them.

[dmholtz]

Same issue for some code snippets, such as yaml:

Source: https://lightning.ai/docs/pytorch/stable/cli/lightning_cli_advanced_3.html

[Borda]

good call, will check it... cc: @lantiga