refactor: migrate list-detail layouts to Material 3 Adaptive Navigation3

- Replace the custom `AdaptiveListDetailScaffold` with the official `ListDetailSceneStrategy` to manage adaptive layout orchestration.
- Integrate `ListDetailSceneStrategy` into `MeshtasticNavDisplay` to enable native pane switching based on the navigation backstack.
- Update `ContactsNavigation` and `NodesNavigation` graphs to include `listPane()` and `detailPane()` metadata for relevant route entries.
- Simplify `AdaptiveContactsScreen` and `AdaptiveNodeListScreen` by removing manual scaffold navigation logic and delegating to the navigation framework.
- Add the `jetbrains.compose.material3.adaptive.navigation3` library dependency to `core:ui` and relevant feature modules.
- Refactor `DesktopMainScreen` and `Main.kt` with minor formatting and indentation updates for better readability.

desktop/src/main/kotlin/org/meshtastic/desktop/ui/DesktopMainScreen.kt

@@ -32,12 +32,14 @@ import org.meshtastic.core.ui.component.MeshtasticNavigationSuite
 import org.meshtastic.core.ui.viewmodel.UIViewModel
 import org.meshtastic.desktop.navigation.desktopNavGraph
 
-/**
- * Desktop main screen — uses shared navigation components.
- */
+/** Desktop main screen — uses shared navigation components. */
 @Composable
 fun DesktopMainScreen(uiViewModel: UIViewModel) {
-    val backStack = androidx.navigation3.runtime.rememberNavBackStack(MeshtasticNavSavedStateConfig, NodesRoutes.NodesGraph as NavKey)
+    val backStack =
+        androidx.navigation3.runtime.rememberNavBackStack(
+            MeshtasticNavSavedStateConfig,
+            NodesRoutes.NodesGraph as NavKey,
+        )
 
     Surface(modifier = Modifier.fillMaxSize()) {
         MeshtasticAppShell(
@@ -45,10 +47,12 @@ fun DesktopMainScreen(uiViewModel: UIViewModel) {
             uiViewModel = uiViewModel,
             hostModifier = Modifier.padding(bottom = 24.dp),
         ) {
-            MeshtasticNavigationSuite(backStack = backStack, uiViewModel = uiViewModel, modifier = Modifier.fillMaxSize()) {
-                val provider = entryProvider<NavKey> {
-                    desktopNavGraph(backStack, uiViewModel)
-                }
+            MeshtasticNavigationSuite(
+                backStack = backStack,
+                uiViewModel = uiViewModel,
+                modifier = Modifier.fillMaxSize(),
+            ) {
+                val provider = entryProvider<NavKey> { desktopNavGraph(backStack, uiViewModel) }
                 MeshtasticNavDisplay(backStack = backStack, entryProvider = provider, modifier = Modifier.fillMaxSize())
             }
         }