Port Android app to Linux using Tauri

[kirillt]

This is the mobile app to port:
https://github.com/arK-Builders/ark-rate

Minimal prototype:

• Enable input of different currencies into separate fields
• Wire the app to https://github.com/ARK-Builders/ark-exchange-rates
• Enable summing-up all currencies into different currencies

Also, would be nice to implement:

• Tabs for Portfolio screen ARK-Rate#39
• Portfolio persistence ARK-Rate#33
• Export portfolio to Spreadsheet #2
• Exchange rate dynamics tracking/plotting ARK-Rate#15