feat: add new keyboard input

[im-adithya]

Removes the need for native keyboard for amounts

TODOs:

• Fix keyboard dismiss delay on closing description bottom sheet
• Handle amount overflow
• Add slashed zeros everywhere (check if possible in tailwind) (Opened Add slashed-zeros #382)
• Is fixed amount invoice case okay as it is in LNURLPay?
• Test in android (Opened BottomSheet has extra padding above keyboard #381)

[rolznz]

For some reason after adding a description in the pay to LNURL, the keyboard dismisses very slowly, can that be changed?

[rolznz]

The keyboard and UX feels great, nice work! tested on iPhone 13.

[im-adithya]

For some reason after adding a description in the pay to LNURL, the keyboard dismisses very slowly, can that be changed?

Yeah I noticed that too: added to TODOs. Not sure how we can fix it though, will check and get back 👍