[BetaBadge] Add alignment prop

[chandlerprall]

See the Beta badge type example,

TODO

• Add new prop for alternative alignments (e.g. baseline, middle, super)
• [Proposed] set default to baseline

Reported by Discover(elastic/kibana#144655) and the synthetics recorder team.

[chandlerprall]

Nvm, the super alignment is the intended location; that positioning was shifted to the current location through recent css value tweaks, but it's working as expected.

[ryankeairns]

There are use cases where the super alignment is not always desirable. In a Slack thread, we gained consensus for adding a prop with alternate vertical alignment options (e.g. super, baseline, middle).