Proxy connection and healthcheck

[Janaka-Steph]

Handle proxy connection and health check.
healthCheck is called in useExponentialInterval (fast at startup then every 4 secs).
Fix market selection error by fetching asset data from Esplora and determining market based on ticker rather than asset_id.

It closes #108
It closes #122
It closes #176
It closes #177
It closes #181

Known issue:

• Quitting app from MacOS Dock will not kill the proxy process because it is not supported by Tauri ([feat][macOS] Provide a hook to capture the dock events / activate event tauri-apps/tauri#3084)

Please review @tiero @altafan

[tiero]

utACK

[altafan]

@Janaka-Steph I always need to reload the app after pairing with an initialized daemon to see balances, markets, etc correctly.

From the console, it seems like the dashboard tries to call the grpc methods while connecting. It should either wait for the proxy to be connected or retry all the failing grpc calls.

[Janaka-Steph]

@Janaka-Steph I always need to reload the app after pairing with an initialized daemon to see balances, markets, etc correctly.

From the console, it seems like the dashboard tries to call the grpc methods while connecting. It should either wait for the proxy to be connected or retry all the failing grpc calls.

@altafan
Last commit should fix this. Still need to shorten the useInterval loop (fast at startup then 5sec) to speedup the refresh.

[altafan]

Yes, it's fixed 👍

[altafan]

@Janaka-Steph I tested after the last commits:

• the red/yellow/green button signaling the status of the proxy has disappeared if starting the app with yarn tauri:dev
• After pairing the dashboard with an initialized daemon, if I quit the tauri app and then restart again with yarn tauri:dev the error modal with message Service Unavailable - Service is not available or credentials are wrong, please retry. is shown. It's enough to reload the app to make it work correctly.

• Dunno if this is a known issue already, but on regtest I'm not able to withdraw funds from a market. I always get the message market selection error with any valid amount. Also not sure the select input on the left looks good.