Feature Request: Icon Legend

[sol3uk]

Description

Some form of legend list that shows all icons and their meanings. Maybe we use some sort of modal, or a popup that can be pinned?
Possible implementations:

Idea 1

Idea 2

[sol3uk]

There's a possibility we could even leverage the Picture in Picture API

https://developer.chrome.com/docs/web-platform/document-picture-in-picture#:~:text=The%20Document%20Picture%2Din%2DPicture,Picture%2Din%2DPicture%20window.

https://developer.mozilla.org/en-US/docs/Web/API/Picture-in-Picture_API

https://lazy-guy.github.io/tomodoro/index.html