upgrade typescript, and add allowJS to tsconfig.json

Author: that1matt

package-lock.json

@@ -117,7 +117,7 @@
     "stylelint": "^9.6.0",
     "stylelint-config-standard": "^18.2.0",
     "stylelint-order": "^1.0.0",
-    "typescript": "^2.3.0",
+    "typescript": "^3.1.3",
     "webpack": "^4.21.0",
     "webpack-dev-middleware": "^3.4.0",
     "webpack-hot-middleware": "^2.18.0"

package.json

@@ -1,5 +1,6 @@
 {
   "compilerOptions": {
+    "allowJs": true,
     "target": "es5",
     "moduleResolution": "node",
     "jsx": "react",
@@ -19,4 +20,4 @@
     "docs/node_modules",
     "lib"
   ]
-}
+}