Upgrade to typescript@3.4.3

package-lock.json

@@ -5326,9 +5326,9 @@
             "dev": true
         },
         "typescript": {
-            "version": "3.3.3333",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.3.3333.tgz",
-            "integrity": "sha512-JjSKsAfuHBE/fB2oZ8NxtRTk5iGcg6hkYXMnZ3Wc+b2RSqejEqTaem11mHASMnFilHrax3sLK0GDzcJrekZYLw==",
+            "version": "3.4.3",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.4.3.tgz",
+            "integrity": "sha512-FFgHdPt4T/duxx6Ndf7hwgMZZjZpB+U0nMNGVCYPq0rEzWKjEDobm4J6yb3CS7naZ0yURFqdw9Gwc7UOh/P9oQ==",
             "dev": true
         },
         "unc-path-regex": {

package.json

@@ -191,7 +191,7 @@
         "@types/winreg": "^1.2.30",
         "clean-webpack-plugin": "^2.0.0",
         "ts-loader": "^5.3.3",
-        "typescript": "^3.3.3",
+        "typescript": "^3.4.3",
         "vscode": "^1.1.21",
         "webpack": "^4.29.6",
         "webpack-cli": "^3.2.3"