fixed overwrite on internal copy, DST drift in widget anchors, inline errors without controller and removed dead room lookup

lib/view/pages/settings/sections/account_section.dart

@@ -61,16 +61,11 @@ class _AccountSectionState extends State<AccountSection> {
     if (result == null || !mounted) return;
 
     if (result is AvatarRemoveResult) {
-      var confirmed = false;
-      await showDialog<void>(
-        context: context,
-        builder: (_) => ConfirmDialog(
-          title: 'Profilbild entfernen',
-          content: 'Möchtest du dein Profilbild wirklich entfernen?',
-          confirmButton: 'Entfernen',
-          onConfirm: () => confirmed = true,
-        ),
-      );
+      final confirmed = await const ConfirmDialog(
+        title: 'Profilbild entfernen',
+        content: 'Möchtest du dein Profilbild wirklich entfernen?',
+        confirmButton: 'Entfernen',
+      ).ask(context);
       if (!confirmed || !mounted) return;
     }
 
@@ -211,20 +206,17 @@ Future<void> _confirmLogout(BuildContext context) async {
   // Flip AccountBloc state only after the dialog fully closes: doing it from
   // inside the sign-out (the previous approach) raced AsyncDialogAction's
   // pop(true) against the navigator teardown of the account switch.
-  final confirmed = await showDialog<bool>(
-    context: context,
-    builder: (dialogContext) => ConfirmDialog(
-      title: 'Abmelden?',
-      content: others > 0
-          ? 'Möchtest du dich wirklich abmelden? Die App wechselt danach zu '
-                'einem deiner anderen Konten.'
-          : 'Möchtest du dich wirklich abmelden?',
-      confirmButton: 'Abmelden',
-      onConfirmAsync: () async =>
-          nextAccountId = await SessionLifecycle.signOut(),
-    ),
-  );
-  if (confirmed != true) return;
+  final confirmed = await ConfirmDialog(
+    title: 'Abmelden?',
+    content: others > 0
+        ? 'Möchtest du dich wirklich abmelden? Die App wechselt danach zu '
+              'einem deiner anderen Konten.'
+        : 'Möchtest du dich wirklich abmelden?',
+    confirmButton: 'Abmelden',
+    onConfirmAsync: () async =>
+        nextAccountId = await SessionLifecycle.signOut(),
+  ).ask(context);
+  if (!confirmed) return;
   accountBloc.activated(nextAccountId);
 }