Mobile view for calendar day

[jeriox]

On mobile the view is pretty painful. Maybe we can build something like Fantastical uses, which I find quite nice on my phone? (Except having dividers for days, we could have dividers for the hour (?) a shift starts in, then list all shifts, then the next divider etc.

Originally posted by @BenBals in https://github.com/ephios-dev/ephios/issues/1221#issuecomment-1986468848