Rewrite app into typescript

[hynek-jina]

• [x] https://github.com/hynek-jina/lotes/issues/7
• [x] Settings
• [x] Main page
  • [x] Balance
  • [ ] https://github.com/hynek-jina/lotes/issues/15 → as a followup
  • [x] List of lotes
  • [x] Validate
• [x] API calls
  • [x] ScanLNURL
  • [x] CreateAnInvoice
  • [x] RequestPayment
  • [x] CreateLNURL
• [x] NFC interaction
  • [x] ReadFromNFC
  • [x] WriteToNFC