Nostr geohash (#276)

* first nostr build

* add test file

* internet access

* fix relay manager

* fix serialization

* demo service - remove later

* fix nostr

* event dedupe

* dedupe

* ui wip

* can send messages

* subscription works

* works

* favs

* works

* delete chat on change

* fix mentions

* remove autojoin channels

* styling

* adjust colors

* ui changes

* live updates working

* use local timestamp

* message history in background

* robust

* fixes

* nicknames refresh optimization

* nostr service

* refactor nostr

* style

* geohash works

* centralize colors

* refactoring

* disable DMs for now: click on peer nickname doesnt open chat list in geohash mode

* use local time

* less logging

* robustness

* scroll nickname

* adjust some text

app/src/main/java/com/bitchat/android/onboarding/LocationCheckScreen.kt

@@ -119,7 +119,7 @@ private fun LocationDisabledContent(
                 }
                 
                 Text(
-                    text = "bitchat does NOT track your location or use GPS.\n\nLocation services are required by Android for Bluetooth scanning to work properly. This is an Android system requirement.",
+                    text = "bitchat does NOT track your location.\n\nLocation services are required for Bluetooth scanning and for the Geohash chat feature.",
                     style = MaterialTheme.typography.bodySmall.copy(
                         fontFamily = FontFamily.Monospace,
                         color = colorScheme.onSurface.copy(alpha = 0.8f)
@@ -141,8 +141,8 @@ private fun LocationDisabledContent(
                 Text(
                     text = "• Bluetooth device scanning (Android requirement)\n" +
                             "• Discovering nearby users on mesh network\n" +
-                            "• Creating connections without internet\n" +
-                            "• No GPS tracking or location collection",
+                            "• Geohash chat feature\n" +
+                            "• No tracking or location collection",
                     style = MaterialTheme.typography.bodySmall.copy(
                         fontFamily = FontFamily.Monospace,
                         color = colorScheme.onSurface.copy(alpha = 0.8f)