Add notice and license to package.json

NOTICE

@@ -0,0 +1,13 @@
+Copyright 2024 <dev-here>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

package.json

@@ -1,5 +1,6 @@
 {
   "name": "cosmos-multisig-ui",
+  "license": "Apache-2.0",
   "private": true,
   "scripts": {
     "dev": "next dev",