better datepicker widget

[jancborchardt]

The main usecase for the datepicker is when you want to put in a transaction from yesterday or the day before. Not much further in the past, and definitely not in the future.

The current month-style datepicker isn’t very supportive for that. You can easily misclick, the elements are small etc.

Instead, we should have an iOS-style date-roller widget. Only needs to be one roll (no extra stuff for year or month). Should also show the weekday.

[jancborchardt]

Closing in favor of Add date buttons for "today" and "yesterday" in addition to date picker #42.