invites view added

packages/simplex_app/lib/views/invitations/invitation_view.dart

@@ -0,0 +1,50 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_svg/svg.dart';
+import 'package:simplex_chat/constants.dart';
+
+class Invitations extends StatelessWidget {
+  const Invitations({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      color: Colors.white,
+      child: Padding(
+        padding: const EdgeInsets.symmetric(horizontal: 15.0, vertical: 20.0),
+        child: Column(
+          children: [
+            Align(
+              alignment: Alignment.centerRight,
+              child: SvgPicture.asset(
+                'assets/logo.svg',
+                height: 40.0,
+              ),
+            ),
+            const SizedBox(height: 15.0),
+            Row(
+              children: const [
+                Icon(Icons.inventory_outlined, color: kPrimaryColor),
+                SizedBox(width: 8.0),
+                Text(
+                  'Invitations',
+                  style: kHeadingStyle,
+                )
+              ],
+            ),
+            const SizedBox(height: 5.0),
+            SizedBox(
+              height: MediaQuery.of(context).size.height * 0.7,
+              child: const Center(
+                child: Text(
+                  "You don't have any invitations yet!",
+                  style: kMediumHeadingStyle,
+                  textAlign: TextAlign.center,
+                ),
+              ),
+            )
+          ],
+        ),
+      ),
+    );
+  }
+}