feat: allow to create widgets

- supported widget types: therpad, jitsi, video, custom
- update Matrix SDK

Signed-off-by: TheOneWithTheBraid <the-one@with-the-braid.cf>

lib/pages/chat/add_widget_tile_view.dart

@@ -0,0 +1,71 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+import 'package:flutter_gen/gen_l10n/l10n.dart';
+
+import 'package:fluffychat/pages/chat/add_widget_tile.dart';
+
+class AddWidgetTileView extends StatelessWidget {
+  final AddWidgetTileState controller;
+
+  const AddWidgetTileView({Key? key, required this.controller})
+      : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return ExpansionTile(
+      title: Text(L10n.of(context)!.addWidget),
+      leading: const Icon(Icons.add),
+      initiallyExpanded: controller.initiallyExpanded,
+      children: [
+        CupertinoSegmentedControl(
+          groupValue: controller.widgetType,
+          padding: const EdgeInsets.all(8),
+          children: {
+            'm.etherpad': Text(L10n.of(context)!.widgetEtherpad),
+            'm.jitsi': Text(L10n.of(context)!.widgetJitsi),
+            'm.video': Text(L10n.of(context)!.widgetVideo),
+            'm.custom': Text(L10n.of(context)!.widgetCustom),
+          }.map((key, value) => MapEntry(
+              key,
+              Padding(
+                padding: const EdgeInsets.symmetric(horizontal: 4.0),
+                child: value,
+              ))),
+          onValueChanged: controller.setWidgetType,
+        ),
+        Padding(
+          padding: const EdgeInsets.all(8.0),
+          child: TextField(
+            controller: controller.nameController,
+            autofocus: true,
+            decoration: InputDecoration(
+              prefixIcon: const Icon(Icons.label),
+              label: Text(L10n.of(context)!.widgetName),
+              errorText: controller.nameError,
+            ),
+          ),
+        ),
+        Padding(
+          padding: const EdgeInsets.all(8.0),
+          child: TextField(
+            controller: controller.urlController,
+            decoration: InputDecoration(
+              prefixIcon: const Icon(Icons.add_link),
+              label: Text(L10n.of(context)!.link),
+              errorText: controller.urlError,
+            ),
+          ),
+        ),
+        ButtonBar(
+          children: [
+            TextButton(
+              onPressed: controller.addWidget,
+              child: Text(L10n.of(context)!.addWidget),
+            ),
+          ],
+        )
+      ],
+    );
+  }
+}