attempt another fix for keyboard issues

android/app/src/main/kotlin/com/example/mobile_requester_app/MainActivity.kt

@@ -1,5 +0,0 @@
-package nexus.federated.nexus
-
-import io.flutter.embedding.android.FlutterActivity
-
-class MainActivity: FlutterActivity()

android/app/src/main/kotlin/nexus/federated/nexus/MainActivity.kt

@@ -0,0 +1,19 @@
+package nexus.federated.nexus
+
+import android.view.View
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity() {
+    override fun onWindowFocusChanged(hasFocus: Boolean) {
+        super.onWindowFocusChanged(hasFocus)
+        if (!hasFocus) return
+
+        // Flutter swallows inset updates while it thinks a keyboard animation is
+        // running, and only stops when the animation ends. If the app is
+        // backgrounded mid-animation, it can miss the end and keep the keyboard's
+        // space reserved, so hand the view the real insets directly.
+        val view = findViewById<View>(FLUTTER_VIEW_ID) ?: return
+        val insets = view.rootWindowInsets ?: return
+        view.onApplyWindowInsets(insets)
+    }
+}

lib/controllers/app_paused.dart

@@ -5,7 +5,6 @@ class AppPausedController extends Notifier<bool> {
   @override
   bool build() {
     final listener = AppLifecycleListener(
-      onHide: () => FocusManager.instance.primaryFocus?.unfocus(),
       onPause: () => state = true,
       onResume: () => state = false,
     );