[Feature]: QuickPay

[pwltr]

Describe the problem

Bitkit Mobile Prototype v49:

🚀 Send (QuickPay): Integrated and optimized the QuickPay feature and user flow into the prototype, accessible via the central scan button (if enabled in settings).
🚀 Suggestions > QuickPay: Added a suggestion card for QuickPay, shown only if the user has a spending balance (active lightning channel).
🚀 Settings > General > QuickPay: Added option for users to enable QuickPay (opt-in) and set a QuickPay threshold.

Describe the solution

No response

Additional context

No response

[pwltr]

Think about possible ways to exploit this like draining using LnUrlPay, maybe add a time based limit.

[catch-21]

Tested on 0fbc9c3
Worked really well in happy paths and when errors and pending payment occur.
My only UX improvement suggestion is #2368