feat(ofm): Allow for dashes in custom callout label (#1493)

* [OFM] Allow for dashes in custom callout label

For compatibility with Obsidian's behavior, a custom callout like
[!see-also] is possible. Previously, this was parsed by Quartz as a
callout “see” with metadata “-also”. Instead, this is should be a
callout “see-also” with title “See also” (capitalization + replace
dashes by spaces).

* prettier