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/login/view/login_page.dart

@@ -105,7 +105,7 @@ class _LoginPageState extends State<LoginPage> {
                 ),
               ),
             ServerConnectionPage(
-              titleString: widget.titleString,
+              titleText: widget.titleString,
               formBuilderKey: _formKey,
               onContinue: () {
                 _pageController.nextPage(
@@ -126,7 +126,6 @@ class _LoginPageState extends State<LoginPage> {
   }
 
   Future<void> _login() async {
-    
     FocusScope.of(context).unfocus();
     if (_formKey.currentState?.saveAndValidate() ?? false) {
       final form = _formKey.currentState!.value;
@@ -150,7 +149,7 @@ class _LoginPageState extends State<LoginPage> {
           form[ServerAddressFormField.fkServerAddress],
           clientCert,
         );
-      } on PaperlessServerException catch (error) {
+      } on PaperlessApiException catch (error) {
         showErrorMessage(context, error);
       } on ServerMessageException catch (error) {
         showLocalizedError(context, error.message);

lib/features/login/view/widgets/form_fields/server_address_form_field.dart

@@ -66,7 +66,10 @@ class _ServerAddressFormFieldState extends State<ServerAddressFormField> {
                 .values
                 .where((element) => element.contains(textEditingValue.text));
           },
-          onSelected: (option) => _formatInput(),
+          onSelected: (option) {
+            _formatInput();
+            field.didChange(_textEditingController.text);
+          },
           fieldViewBuilder:
               (context, textEditingController, focusNode, onFieldSubmitted) {
             return TextField(
@@ -111,6 +114,10 @@ class _ServerAddressFormFieldState extends State<ServerAddressFormField> {
     String address = _textEditingController.text.trim();
     address = address.replaceAll(RegExp(r'^\/+|\/+$'), '');
     _textEditingController.text = address;
+    _textEditingController.selection = TextSelection(
+      baseOffset: address.length,
+      extentOffset: address.length,
+    );
     widget.onSubmit(address);
   }
 }

lib/features/login/view/widgets/login_pages/server_connection_page.dart

@@ -13,14 +13,14 @@ import 'package:provider/provider.dart';
 
 class ServerConnectionPage extends StatefulWidget {
   final GlobalKey<FormBuilderState> formBuilderKey;
-  final void Function() onContinue;
-  final String titleString;
+  final VoidCallback onContinue;
+  final String titleText;
 
   const ServerConnectionPage({
     super.key,
     required this.formBuilderKey,
     required this.onContinue,
-    required this.titleString,
+    required this.titleText,
   });
 
   @override
@@ -36,7 +36,7 @@ class _ServerConnectionPageState extends State<ServerConnectionPage> {
     return Scaffold(
       appBar: AppBar(
         toolbarHeight: kToolbarHeight - 4,
-        title: Text(widget.titleString),
+        title: Text(widget.titleText),
         bottom: PreferredSize(
           child: _isCheckingConnection
               ? const LinearProgressIndicator()