fix(android): place shell banners below the status bar

ShellScaffold's banner column did not consume the status-bar inset while each screen's app bar did, so the update/connection banners drew under the status bar. Consume the inset once at the shell (statusBarsPadding) so banners sit below it; descendant screen app bars see the consumed inset and stop re-padding, matching Flutter's SafeArea(bottom:false).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

android/app/src/main/java/com/fabledsword/minstrel/shared/widgets/ShellScaffold.kt

@@ -4,6 +4,7 @@ import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.statusBarsPadding
 import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.SnackbarHostState
 import androidx.compose.runtime.Composable
@@ -61,7 +62,12 @@ fun ShellScaffold(
             snackbarHostState.showSnackbar(msg)
         }
     }
-    Column(modifier = modifier.fillMaxSize()) {
+    // Consume the status-bar inset once here so the banner stack sits
+    // below the status bar (mirrors Flutter's SafeArea(bottom:false)).
+    // statusBarsPadding consumes the inset for descendants, so the in-
+    // shell screens' app bars no longer re-pad for the status bar —
+    // avoiding a double inset while fixing banners drawing under it.
+    Column(modifier = modifier.fillMaxSize().statusBarsPadding()) {
         // Banner slot. VersionTooOldBanner appears when the server's
         // min_client_version exceeds our build; UpdateBanner softly
         // nudges an available (newer-than-installed) APK; and