add bootstrap5

[otwn]

using CDN version of bootstrap5, bootstrap icon, and FontAwesome 6.

[tlienart]

That's awesome!! tried locally and it's great; thanks a lot for this

two very small changes before merging this:

1. could you bump up the version to 0.10 so we can release this?
2. could you remove Franklin in the deps? technically Franklin is not a dep of FranklinTemplates (not that it matters a ton but it avoids circular stuff when doing dev work)

🙌

[otwn]

I hope this works. Thanks

[tlienart]

Thanks a lot!