Add typescript to the dev dependencies

package-lock.json

@@ -10,7 +10,8 @@
       "license": "GPL-3.0",
       "devDependencies": {
         "@types/node": "^16.9.4",
-        "prettier": "^2.3.1"
+        "prettier": "^2.3.1",
+        "typescript": "^4.4.4"
       },
       "engines": {
         "node": ">=16.0.0"
@@ -33,6 +34,19 @@
       "engines": {
         "node": ">=10.13.0"
       }
+    },
+    "node_modules/typescript": {
+      "version": "4.4.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.4.tgz",
+      "integrity": "sha512-DqGhF5IKoBl8WNf8C1gu8q0xZSInh9j1kJJMqT3a94w1JzVaBU4EXOSMrz9yDqMT0xt3selp83fuFMQ0uzv6qA==",
+      "dev": true,
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=4.2.0"
+      }
     }
   },
   "dependencies": {
@@ -47,6 +61,12 @@
       "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.4.1.tgz",
       "integrity": "sha512-9fbDAXSBcc6Bs1mZrDYb3XKzDLm4EXXL9sC1LqKP5rZkT6KRr/rf9amVUcODVXgguK/isJz0d0hP72WeaKWsvA==",
       "dev": true
+    },
+    "typescript": {
+      "version": "4.4.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.4.tgz",
+      "integrity": "sha512-DqGhF5IKoBl8WNf8C1gu8q0xZSInh9j1kJJMqT3a94w1JzVaBU4EXOSMrz9yDqMT0xt3selp83fuFMQ0uzv6qA==",
+      "dev": true
     }
   }
 }

package.json

@@ -41,6 +41,7 @@
   ],
   "devDependencies": {
     "@types/node": "^16.9.4",
-    "prettier": "^2.3.1"
+    "prettier": "^2.3.1",
+    "typescript": "^4.4.4"
   }
 }