Merged RadarScreen and RadioControlScreen functionality

core/data/src/main/java/com/rtbishop/look4sat/core/data/framework/RadioTrackingService.kt

@@ -64,7 +64,7 @@ class RadioTrackingService(
         Log.i(tag, "Connecting TX=$txAddr RX=$rxAddr")
 
         if (txAddr.isBlank() && rxAddr.isBlank()) {
-            _state.update { it.copy(errorMessage = "No radio addresses configured. Set them in Settings → FT-817.") }
+            _state.update { it.copy(errorMessage = "No radio addresses configured in Settings") }
             return
         }
 

core/presentation/src/main/java/com/rtbishop/look4sat/core/presentation/Navigation.kt

@@ -32,9 +32,6 @@ sealed class Screen(val iconResId: Int, val titleResId: Int) : NavKey {
     @Serializable
     data object Radar : Screen(R.drawable.ic_radar, R.string.nav_radar)
 
-    @Serializable
-    data object RadioControl : Screen(0, 0)
-
     @Serializable
     data object Map : Screen(R.drawable.ic_map, R.string.nav_map)