Use first version of fork-ts-checker-webpack-plugin that fixes peer deps

Author: nickserv

package.json

@@ -34,7 +34,7 @@
     "dotenv-expand": "4.2.0",
     "extract-text-webpack-plugin": "3.0.2",
     "file-loader": "1.1.5",
-    "fork-ts-checker-webpack-plugin": "0.4.9",
+    "fork-ts-checker-webpack-plugin": "0.4.4",
     "fs-extra": "3.0.1",
     "html-webpack-plugin": "2.29.0",
     "jest": "23.5.0",