feat(react): basic integration for basic widget & modal

apps/client/src/widgets/react/Modal.tsx

@@ -0,0 +1,11 @@
+export default function Modal({ children }) {
+    return (
+        <div className="modal fade mx-auto" tabIndex={-1} role="dialog">
+            <div className="modal-dialog" role="document">
+                <div className="modal-content">
+                    {children}
+                </div>
+            </div>
+        </div>
+    );
+}