Dark theme inverts YouTube and Vimeo player colors.

[IngrownMink4]

Steps to reproduce:

• When you activate dark theme in your website and then you go to https://deepthought-theme.netlify.app/docs/welcome-to-deep-thought/ if you reproduce the embedded videos (from YouTube and Vimeo), you can see that actually the colours are inverted.

Expected results:

• The embedded videos shouldn't be affected by the dark theme. They shouldn't have inverted colours.

Tested in:

• Firefox Nightly 88 and Firefox Stable 86 (I could reproduce it)
• Ungoogled Chromium 88 (I could reproduce it)

[RatanShreshtha]

I am going to fix this in next release meanwhile if you have a fix ready then you can raise a PR for that.

[RatanShreshtha]

@IngrownMink4 Fixed

[IngrownMink4]

@IngrownMink4 Fixed

Hey @RatanShreshtha thanks for fixing that! <3