Refactoring plan

[davidyuk]

• drop rxjs
• vue 3
• vite
• pinia
• commitlint as in sdk
• update cordova deps/drop cordova
• ensure airgap works
• refactor accounts (inherit from AccountBase)
• show modal on unhandled error, ask to fill issue
• drop network name (use predefined name or hostname)
• drop remote name (use browser name, os)
• figure out "single-instance" modal on desktop