Add screenshots to key-concepts/dashboard.md

[HonkingGoose]

Describe the proposed change(s).

@rarkins Liked my idea to add screenshots to the dashboard.md page: #11183 (comment), but wanted to get the new dashboard.md page up and running first, before worrying about screenshots. 😄

Add screenshots to Key concepts, dependency dashboard:

• Light mode
• Dark mode

See Material for MkDocs documentation on light/dark mode images.

[ojasaklechayt]

Can I work on this under Hacktobesfest ?

[ojasaklechayt]

What screenshots do we need to add ?

[HonkingGoose]

Can I work on this under Hacktobesfest ?

Sure, I'll assign this issue to you so we know you're going to work on it.

What screenshots do we need to add ?

Let's keep it simple for now:

• Light mode screenshot of our Dependency Dashboard ¹, with #only-light fragment added to the end of the URL ²
• Dark mode screenshot of our Dependency Dashboard ¹, with #only-dark fragment added to the end of the URL ²

Footnotes

1. https://github.com/renovatebot/renovate/issues/2958 ↩ ↩²

2. https://squidfunk.github.io/mkdocs-material/reference/images/#light-and-dark-mode ↩ ↩²