Switch twitter logo to bluesky

[Bisaloo]

When the Epiverse-TRACE bluesky account is open

[joshwlambert]

The bluesky account is now open (https://web-cdn.bsky.app/profile/epiverse-trace.bsky.social) 🦋

[Bisaloo]

Current blocker: bluesky icon is not available in the default icons provided by Bootstrap.

It is in fontawesome though but from what I understand, fontawesome logos cannot be used directly in the navbar currently (quarto-ext/fontawesome#6).

[Bisaloo]

Bluesky icon in Bootstrap icons tracked in twbs/icons#1886.

[Bisaloo]

Bluesky icon is now in Bootstrap icons, and should be available in the next quarto release.