feat: Rework error handling, upgrade dio, fixed bugs

- Fix grey screen bug when adding labels from documnet upload
- Add more permission checks to conditionally show widgets

lib/features/edit_label/view/edit_label_page.dart

@@ -114,7 +114,7 @@ class EditLabelForm<T extends Label> extends StatelessWidget {
       if (shouldDelete) {
         try {
           onDelete(context, label);
-        } on PaperlessServerException catch (error) {
+        } on PaperlessApiException catch (error) {
           showErrorMessage(context, error);
         } catch (error, stackTrace) {
           log("An error occurred!", error: error, stackTrace: stackTrace);

lib/features/edit_label/view/impl/edit_correspondent_page.dart

@@ -24,10 +24,8 @@ class EditCorrespondentPage extends StatelessWidget {
               context.read<EditLabelCubit>().replaceCorrespondent(label),
           onDelete: (context, label) =>
               context.read<EditLabelCubit>().removeCorrespondent(label),
-          canDelete: LocalUserAccount.current.paperlessUser.hasPermission(
-            PermissionAction.delete,
-            PermissionTarget.correspondent,
-          ),
+          canDelete:
+              LocalUserAccount.current.paperlessUser.canDeleteCorrespondents,
         );
       }),
     );

lib/features/edit_label/view/impl/edit_document_type_page.dart

@@ -22,10 +22,8 @@ class EditDocumentTypePage extends StatelessWidget {
             context.read<EditLabelCubit>().replaceDocumentType(label),
         onDelete: (context, label) =>
             context.read<EditLabelCubit>().removeDocumentType(label),
-        canDelete: LocalUserAccount.current.paperlessUser.hasPermission(
-          PermissionAction.delete,
-          PermissionTarget.documentType,
-        ),
+        canDelete:
+            LocalUserAccount.current.paperlessUser.canDeleteDocumentTypes,
       ),
     );
   }

lib/features/edit_label/view/impl/edit_storage_path_page.dart

@@ -23,10 +23,7 @@ class EditStoragePathPage extends StatelessWidget {
             context.read<EditLabelCubit>().replaceStoragePath(label),
         onDelete: (context, label) =>
             context.read<EditLabelCubit>().removeStoragePath(label),
-        canDelete: LocalUserAccount.current.paperlessUser.hasPermission(
-          PermissionAction.delete,
-          PermissionTarget.storagePath,
-        ),
+        canDelete: LocalUserAccount.current.paperlessUser.canDeleteStoragePaths,
         additionalFields: [
           StoragePathAutofillFormBuilderField(
             name: StoragePath.pathKey,

lib/features/edit_label/view/impl/edit_tag_page.dart

@@ -26,10 +26,7 @@ class EditTagPage extends StatelessWidget {
             context.read<EditLabelCubit>().replaceTag(label),
         onDelete: (context, label) =>
             context.read<EditLabelCubit>().removeTag(label),
-        canDelete: LocalUserAccount.current.paperlessUser.hasPermission(
-          PermissionAction.delete,
-          PermissionTarget.tag,
-        ),
+        canDelete: LocalUserAccount.current.paperlessUser.canDeleteTags,
         additionalFields: [
           FormBuilderColorPickerField(
             initialValue: tag.color,

lib/features/edit_label/view/label_form.dart

@@ -4,7 +4,6 @@ import 'package:flutter_form_builder/flutter_form_builder.dart';
 
 import 'package:paperless_api/paperless_api.dart';
 import 'package:paperless_mobile/core/translation/matching_algorithm_localization_mapper.dart';
-import 'package:paperless_mobile/core/type/types.dart';
 import 'package:paperless_mobile/extensions/flutter_extensions.dart';
 import 'package:paperless_mobile/features/home/view/model/api_version.dart';
 import 'package:paperless_mobile/generated/l10n/app_localizations.dart';
@@ -54,7 +53,7 @@ class _LabelFormState<T extends Label> extends State<LabelForm<T>> {
 
   late bool _enableMatchFormField;
 
-  PaperlessValidationErrors _errors = {};
+  Map<String, String> _errors = {};
 
   @override
   void initState() {
@@ -69,7 +68,8 @@ class _LabelFormState<T extends Label> extends State<LabelForm<T>> {
   Widget build(BuildContext context) {
     List<MatchingAlgorithm> selectableMatchingAlgorithmValues =
         getSelectableMatchingAlgorithmValues(
-            context.watch<ApiVersion>().hasMultiUserSupport);
+      context.watch<ApiVersion>().hasMultiUserSupport,
+    );
     return Scaffold(
       resizeToAvoidBottomInset: false,
       floatingActionButton: FloatingActionButton.extended(
@@ -168,10 +168,10 @@ class _LabelFormState<T extends Label> extends State<LabelForm<T>> {
         final parsed = widget.fromJsonT(mergedJson);
         final createdLabel = await widget.submitButtonConfig.onSubmit(parsed);
         Navigator.pop(context, createdLabel);
-      } on PaperlessServerException catch (error, stackTrace) {
+      } on PaperlessApiException catch (error, stackTrace) {
         showErrorMessage(context, error, stackTrace);
-      } on PaperlessValidationErrors catch (errors) {
-        setState(() => _errors = errors);
+      } on PaperlessFormValidationException catch (exception) {
+        setState(() => _errors = exception.validationMessages);
       }
     }
   }