[BUG] Add favicon to site

[tunetheweb]

Describe the bug

https://webstatus.dev/ doesn't have a favicon, so difficult to distinguish it from other tabs:

Same on Google Search Results:

To Reproduce
Steps to reproduce the behavior:

1. Go to https://webstatus.dev/
2. Look at title bar
3. Notice no site-specific icon

Expected behavior

Sites should have unique(ish) favicons to be able to easily distinguish them in a sea of tabs.

Screenshots

See above

System (please complete the following information):

N/A - all