Add rcc-date-picker
NB: Design
Note that the design looks a little squashed, but as there's a follow-up ticket to change the design anyway (https://gitlab.com/recoverycat/rcc-client/-/issues/479), I'm leaving this as is for now
Closes #441
Note that the design looks a little squashed, but as there's a follow-up ticket to change the design anyway (https://gitlab.com/recoverycat/rcc-client/-/issues/479), I'm leaving this as is for now
Closes #441