Fixes#1463
### Changes
- Explains execution time
- Adds style guide section about adding a badge for paid features
- Updates config for mkdocs-material 9.5, materialx emoji support is
being removed.
- Adds better tooltips, a cool feature that also got released with
mkdocs-material 9.5
- Adds search suggestions
### Caveats
- [mkdocs 1.5 has improved the way they handle link
validation](https://www.mkdocs.org/about/release-notes/#expanded-validation-of-links).
Looks like way I've gone about linking things could be improved, and it
will give a bunch of warnings as a result. The site still builds fine,
but I'm going to fix this in a different PR so this one doesn't take as
much effort to review :)
EDIT: Here's that PR
https://github.com/webrecorder/browsertrix-cloud/pull/1476
### Testing
- Make sure you are up to date with `pip install --upgrade
mkdocs-material`
### Screenshot
**Badge!**
<img width="884" alt="Screenshot 2024-01-17 at 11 59 00 PM"
src="https://github.com/webrecorder/browsertrix-cloud/assets/5672810/62a51cf6-24bd-49f1-a6d0-d335f730bfbe">
### Future
- Should mkdocs-material be versioned in our deployment script? We risk
things breaking if I don't get to them fast enough! 🙃
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Co-authored-by: Tessa Walsh <tessa@bitarchivist.net>
b2d526f09a