chore(package): update file-loader to version 1.1.9

Closes #1461

package.json

@@ -48,7 +48,7 @@
     "eslint-config-scratch": "^5.0.0",
     "eslint-plugin-import": "^2.8.0",
     "eslint-plugin-react": "^7.5.1",
-    "file-loader": "1.1.6",
+    "file-loader": "1.1.9",
     "get-float-time-domain-data": "0.1.0",
     "get-user-media-promise": "1.1.1",
     "gh-pages": "github:rschamp/gh-pages#publish-branch-to-subfolder",