[FEAT] Display digits when entering passwords

[mattok]

When using the keepass2android keyboard to enter a password, alphabetic characters are shown only by default. To reach numeric characters, it is necessary to press a "?123" button to toggle into a different mode showing numbers and symbols. This can result in a lot of toggling becoming necessary, or slow entry due to the need to long press the qwwertyuiop keys.

When entering a password using the Android keyboard, it provides an extra row of buttons at the top with numeric digits. I find this convenient. It speeds up password entry.

I would be grateful if the keepass2android keyboard could be augmented to show an additional row of numeric digits when entering passwords.