fix(#586): route hardcoded colors through theme tokens (Material You / presets) (#592)

Co-authored-by: M57 <m57@hermes-control.app>

app/src/main/java/com/m57/hermescontrol/ui/sessions/SessionsScreen.kt

@@ -575,7 +575,7 @@ fun SessionsScreen(
                             CircularProgressIndicator(
                                 modifier = Modifier.size(18.dp),
                                 strokeWidth = 2.dp,
-                                color = Color.White,
+                                color = statusColors.onError,
                             )
                         } else {
                             Icon(