Added support for Lnurl-Pay through copy/paste and QR code scan

[starbackr-dev]

[x] Added bech32-encoded lnurl utils file [x] Detect encoded lnurl in QR code [x] No new package added other than bech32 [x] Detect lnurl in input field [x] Handle decoded lnurl-pay, lightning address [x] use camera to scan and decode lnurl-pay and lightning address [x] No Update to UI

See #248

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 18.66667% with 61 lines in your changes are missing coverage. Please review.

Project coverage is 13.36%. Comparing base (6a7deb8) to head (79277b2).

Files	Patch %	Lines
src/util/index.ts	22.58%	35 Missing and 13 partials :warning:
src/screens/QRScan/index.tsx	0.00%	9 Missing :warning:
src/screens/Payment/Send/Inputfield.tsx	0.00%	2 Missing :warning:
src/screens/Payment/Processing.tsx	0.00%	1 Missing :warning:
src/screens/Payment/Send/CoinSelection.tsx	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #323 +/- ## ========================================== + Coverage 13.29% 13.36% +0.07% ========================================== Files 164 164 Lines 6153 6209 +56 Branches 1687 1705 +18 ========================================== + Hits 818 830 +12 - Misses 5188 5220 +32 - Partials 147 159 +12 ```

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