[TimePicker] a more functional digital input design

[WAZAAAAA0]

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Is your feature request related to a problem? Please describe. Honestly, the current digital input design when creating a new alarm looks visually "pretty" but is functionally clunky to use for a few subtle reasons.

Describe the solution you'd like Out of all the designs to set up a new alarm I came across, so far the most sensible one for me has been the plain and simple "Numeric keypad" from (the now-abandoned) ClockPlus by philliphsu. Some of the usability advantages include:

• not being at the mercy of the generic numpad included in your own installed keyboard software, which usually comes with unnecessary keys like #-+,., meanwhile Clock+ has a custom-made one for itself
• you can hold down the Delete button to quickly delete everything you typed
• in Clock+ you start typing on a "blank slate", which is more predictable behavior than the weird pre-inserted "current time" of Material
• with the :00 and :30 shortcuts you can input times like 09:00 and 08:30 in just 2 quick taps + OK
• ^theoretically times like 09:00 could be made even faster by allowing the user to input just 9 and OK (behavior not used by Clock+)
• if the first digit you type is "3" or bigger, it cleverly greys out 6/7/8/9
• if you type 1 2 3 in Clock+ you get a 01:23 alarm, which is a more sane behavior than the 12:03 you get on Material
• if you type 8 2 2 in Clock+ you get a 08:22 alarm, meanwhile in the current Material you're stuck typing 8 in the Hour field
• Note: in 12h mode the :00/:30 buttons are replaced with AM/PM, so it's compatible with both.

A "fresh coat of Material paint" on top of that little-known but clever old Material design app sounds like an improvement (and default-worthy imo).

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