chore: Follow up permissions slider dialog

Signed-off-by: Krille <c.kussowski@famedly.com>

lib/widgets/permission_slider_dialog.dart

@@ -1,9 +1,7 @@
-import 'package:flutter/material.dart';
-
-import 'package:flutter_gen/gen_l10n/l10n.dart';
-
 import 'package:fluffychat/widgets/adaptive_dialogs/adaptive_dialog_action.dart';
 import 'package:fluffychat/widgets/adaptive_dialogs/dialog_text_field.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/l10n.dart';
 
 Future<int?> showPermissionChooser(
   BuildContext context, {
@@ -17,10 +15,10 @@ Future<int?> showPermissionChooser(
     builder: (context) => AlertDialog.adaptive(
       title: Text(L10n.of(context).chatPermissions),
       content: ConstrainedBox(
-        constraints: const BoxConstraints(maxWidth: 256),
-        child: Center(
+        constraints: const BoxConstraints(maxWidth: 256, maxHeight: 256),
         child: Column(
           mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.stretch,
           spacing: 12.0,
           children: [
             Text(L10n.of(context).setPermissionsLevelDescription),
@@ -37,7 +35,6 @@ Future<int?> showPermissionChooser(
           ],
         ),
       ),
-      ),
       actions: [
         AdaptiveDialogAction(
           bigButtons: true,