Small fixes

frontend/pweb/lib/pages/settings/widgets/base.dart

@@ -81,17 +81,17 @@ class _BaseEditTileBodyState<T> extends State<_BaseEditTileBody<T>> {
       return;
     }
     _stateNotifier.value = EditState.saving;
-    final sms = ScaffoldMessenger.of(context);
+    final scaffoldMessenger = ScaffoldMessenger.of(context);
     final locs = AppLocalizations.of(context)!;
     try {
       await widget.delegate.valueSetter(newValue);
-      sms.showSnackBar(SnackBar(
+      scaffoldMessenger.showSnackBar(SnackBar(
         content: Text(locs.settingsSuccessfullyUpdated),
         duration: const Duration(milliseconds: 1200),
       ));
     } catch (e) {
-      notifyUserOfErrorX(
-        context: context,
+      showErrorSnackBar(
+        scaffoldMessenger: scaffoldMessenger,
         errorSituation: widget.delegate.errorSituation,
         appLocalizations: locs,
         exception: e,
@@ -123,6 +123,7 @@ class _BaseEditTileBodyState<T> extends State<_BaseEditTileBody<T>> {
         );
       },
     );
+    if (!mounted) return;
     if (result != null) await _performSave(result);
   }
 

frontend/pweb/lib/pages/settings/widgets/image.dart

@@ -41,6 +41,7 @@ class ImageTile extends AbstractSettingsTile {
 
   Future<void> _pickImage(BuildContext context) async {
     final picker = ImagePicker();
+    final scaffoldMessenger = ScaffoldMessenger.of(context);
     final locs = AppLocalizations.of(context)!;
     final picked = await picker.pickImage(
       source: ImageSource.gallery,
@@ -55,8 +56,8 @@ class ImageTile extends AbstractSettingsTile {
         CachedNetworkImage.evictFromCache(imageUrl!);
       }
     } catch (e) {
-      notifyUserOfErrorX(
-        context: context,
+      showErrorSnackBar(
+        scaffoldMessenger: scaffoldMessenger,
         errorSituation: imageUpdateError ?? locs.settingsImageUpdateError,
         exception: e,
         appLocalizations: locs,

frontend/pweb/lib/utils/error/snackbar.dart

@@ -1,5 +1,3 @@
-import 'dart:async';
-
 import 'package:flutter/material.dart';
 
 import 'package:pweb/utils/error/handler.dart';
@@ -41,6 +39,26 @@ Future<void> notifyUserOfErrorX({
   );
 }
 
+void showErrorSnackBar({
+  required ScaffoldMessengerState scaffoldMessenger,
+  required String errorSituation,
+  required Object exception,
+  required AppLocalizations appLocalizations,
+  int delaySeconds = 3,
+}) {
+  final localizedError = ErrorHandler.handleErrorLocs(appLocalizations, exception);
+  final technicalDetails = exception.toString();
+  final snackBar = _buildMainErrorSnackBar(
+    errorSituation: errorSituation,
+    localizedError: localizedError,
+    technicalDetails: technicalDetails,
+    loc: appLocalizations,
+    scaffoldMessenger: scaffoldMessenger,
+    delaySeconds: delaySeconds,
+  );
+  scaffoldMessenger.showSnackBar(snackBar);
+}
+
 Future<void> notifyUserOfError({
   required BuildContext context,
   required String errorSituation,
@@ -88,26 +106,14 @@ Future<void> postNotifyUserOfError({
   required Object exception,
   required AppLocalizations appLocalizations,
   int delaySeconds = 3,
-}) {
-  final completer = Completer<void>();
-
-  WidgetsBinding.instance.addPostFrameCallback((_) async {
-    if (!context.mounted) {
-      completer.complete();
-      return;
-    }
-    await notifyUserOfErrorX(
+}) =>
+    notifyUserOfErrorX(
       context: context,
       errorSituation: errorSituation,
       exception: exception,
       appLocalizations: appLocalizations,
       delaySeconds: delaySeconds,
     );
-    completer.complete();
-  });
-
-  return completer.future;
-}
 
 Future<void> postNotifyUserOfErrorX({
   required BuildContext context,

frontend/pweb/lib/utils/snackbar.dart

@@ -10,7 +10,6 @@ Future<void> notifyUserX(
   String message, {
   int delaySeconds = 3,
 }) async {
-  if (!context.mounted) return;
   final scaffoldMessenger = ScaffoldMessenger.maybeOf(context);
   if (scaffoldMessenger != null) {
     scaffoldMessenger.showSnackBar(