Add concurrently package to package.json

Author: Suhayb-A

package.json

@@ -76,7 +76,8 @@
     "react": "^18.3.1",
     "react-app-rewired": "^2.2.1",
     "sass": "^1.79.4",
-    "typescript": "5.1.6"
+    "typescript": "5.1.6",
+    "concurrently": "^9.1.2"
   },
   "overrides": {
     "@vivjs/viewers": {