ADD:added decode jwt token and automated login to dashboard after login

frontend/package-lock.json

@@ -17,6 +17,7 @@
         "@types/react": "^19.1.4",
         "@types/react-dom": "^19.1.5",
         "axios": "^1.9.0",
+        "jwt-decode": "^4.0.0",
         "react": "^19.1.0",
         "react-dom": "^19.1.0",
         "react-router-dom": "^7.6.0",
@@ -10257,6 +10258,14 @@
         "node": ">=4.0"
       }
     },
+    "node_modules/jwt-decode": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/jwt-decode/-/jwt-decode-4.0.0.tgz",
+      "integrity": "sha512-+KJGIyHgkGuIq3IEBNftfhW/LfWhXUIY6OmyVWjliu5KH1y0fw7VQ8YndE2O4qZdMSd9SqbnC8GOcZEy0Om7sA==",
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/keyv": {
       "version": "4.5.4",
       "resolved": "https://registry.npmjs.org/keyv/-/keyv-4.5.4.tgz",