RaspiBlitz v1.12.0 rc3: electrs reports as not installed and not configured

The `app_state_update_message` reports the following:

```
// other apps ...
{
"id": "electrs",
"version": "v0.10.6",
"installed": true,
"configured": true,
"status": "online",
"local_ip": "",
"http_port": null,
"https_port": null,
"https_forced": false,
"https_self_signed": false,
"hidden_service": null,
"address": "http://:None",
"auth_method": "none",
"details": null,
"error": null
},
```

But when going to the app page, which calls `/api/apps/status_advanced/electrs`:

```
{
"id": "electrs",
"version": "v0.10.6",
"installed": false,
"configured": false,
"status": "offline",
"local_ip": "",
"http_port": "50001",
"https_port": "50002",
"https_forced": null,
"https_self_signed": null,
"hidden_service": ".onion",
"address": "",
"auth_method": null,
"details": {
"initial_sync_done": true,
"block_height": "0",
"blockheightPercent": "0",
"info_sync": "",
"electrum_responding": "1"
},
"error": null
}
```

Thus the webUI displays the wrong message.

Start by tracing the app_state_update_message output and the /api/apps/status_advanced/electrs endpoint, then compare how each determines electrs installation, configuration, and status. Done means both responses agree and the webUI displays the correct electrs message.

Written by the indexing model from the issue text.