converted to environment variables and changed and deleted API key.

package-lock.json

@@ -13,6 +13,7 @@
         "@fortawesome/free-solid-svg-icons": "^6.7.2",
         "@fortawesome/react-fontawesome": "^0.2.2",
         "cors": "^2.8.5",
+        "dotenv": "^16.4.7",
         "express": "^4.21.2",
         "postmark": "^4.0.5",
         "react": "^18.2.0",
@@ -1192,6 +1193,18 @@
         "node": ">=8"
       }
     },
+    "node_modules/dotenv": {
+      "version": "16.4.7",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.4.7.tgz",
+      "integrity": "sha512-47qPchRCykZC03FhkYAhrvwU4xDBFIj1QPqaarj6mdM/hgUzfPHcpkHJOn3mJAufFeeAxAzeGsr5X0M4k6fLZQ==",
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
     "node_modules/dunder-proto": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",