Is your feature request related to a problem? Please describe.

PromptOptions when creating a dialog.prompt currently takes inputType as an option.

It is only limited to text, password or email.

There are cases when it is nice to take a number as an input, where the keypad is restricted to numbers only, instead of taking any string, and then checking if it is a number, and if not, reshowing the prompt.

Describe the solution you'd like

Would like to add an option called number to inputType, and show the numeric keypad in case the inputType is set to number.

Additional context
I'm assuming this would be similar to #3118. If it will be similar, I can create a PR for the same and send it for review.