Investigate migration to HTMX

[baely]

https://htmx.org/

[baely]

closing as I don't think htmx will do what i thought it will do.

many of the complexities around officetracker is managing the state of the calendar and syncing it with the backend. htmx seems to assist in presenting responses from a http request. this may help with presenting the calendar when navigating between months but it won't be worth the engineering effort