feat: overall UI rework in Settings View (#53)

lib/ui/widgets/settingsView/sources_widget.dart

@@ -0,0 +1,80 @@
+import 'package:expandable/expandable.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_i18n/flutter_i18n.dart';
+import 'package:revanced_manager/constants.dart';
+import 'package:revanced_manager/theme.dart';
+import 'package:revanced_manager/ui/widgets/settingsView/custom_text_field.dart';
+
+class SourcesWidget extends StatelessWidget {
+  final String title;
+  final TextEditingController organizationController;
+  final TextEditingController patchesSourceController;
+  final TextEditingController integrationsSourceController;
+
+  const SourcesWidget({
+    Key? key,
+    required this.title,
+    required this.organizationController,
+    required this.patchesSourceController,
+    required this.integrationsSourceController,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return ExpandablePanel(
+      theme: ExpandableThemeData(
+        hasIcon: true,
+        iconColor: Theme.of(context).iconTheme.color,
+        iconPadding: const EdgeInsets.symmetric(vertical: 16.0),
+        animationDuration: const Duration(milliseconds: 400),
+      ),
+      header: SizedBox(
+        width: double.infinity,
+        child: ListTile(
+          contentPadding: EdgeInsets.zero,
+          title: I18nText(
+            'sourcesCard.widgetTitle',
+            child: Text('', style: kSettingItemTextStyle),
+          ),
+          subtitle: I18nText(
+            'sourcesCard.widgetSubtitle',
+            child: Text(
+              '',
+              style: Theme.of(context).textTheme.bodyMedium!.copyWith(
+                    color: isDark ? Colors.grey[400] : Colors.grey[600],
+                  ),
+            ),
+          ),
+        ),
+      ),
+      expanded: Card(
+        color: isDark
+            ? Theme.of(context).colorScheme.primary
+            : Theme.of(context).navigationBarTheme.backgroundColor!,
+        child: Column(
+          children: <Widget>[
+            CustomTextField(
+              inputController: organizationController,
+              label: I18nText('sourcesCard.organizationLabel'),
+              hint: ghOrg,
+              onChanged: (value) => ghOrg = value,
+            ),
+            CustomTextField(
+              inputController: patchesSourceController,
+              label: I18nText('sourcesCard.patchesSourceLabel'),
+              hint: patchesRepo,
+              onChanged: (value) => patchesRepo = value,
+            ),
+            CustomTextField(
+              inputController: integrationsSourceController,
+              label: I18nText('sourcesCard.integrationsSourceLabel'),
+              hint: integrationsRepo,
+              onChanged: (value) => integrationsRepo = value,
+            ),
+          ],
+        ),
+      ),
+      collapsed: Container(),
+    );
+  }
+}