feat: Enable flow, there aren't any file being check yet

.eslintrc

@@ -9,6 +9,7 @@
     "plugin:react/recommended",
     "plugin:flowtype/recommended"
   ],
+  "parser": "babel-eslint",
   "parserOptions": {
     "sourceType": "module",
     "ecmaVersion": 7,

.flowconfig

@@ -0,0 +1,24 @@
+[ignore]
+.*/node_modules/.*
+lib/.*
+.*/test/**/*.json
+.*/static/.*
+.*/test/unit/partials/.*
+.*/test/functional/store/.*
+.*/.nyc_output/.*
+.*/coverage/.*
+.*/.vscode/.*
+
+[include]
+
+[libs]
+node_modules/@verdaccio/types/lib/
+
+[lints]
+
+[options]
+suppress_comment= \\(.\\|\n\\)*\\$FlowFixMe
+unsafe.enable_getters_and_setters=true
+
+[version]
+^0.52.0

package.json

@@ -79,6 +79,7 @@
     "eslint-plugin-react": "7.1.0",
     "extract-text-webpack-plugin": "3.0.0",
     "file-loader": "0.11.2",
+    "flow-bin": "0.52.0",
     "flow-runtime": "0.13.0",
     "friendly-errors-webpack-plugin": "1.6.1",
     "fs-extra": "4.0.1",
@@ -124,6 +125,7 @@
   "scripts": {
     "release": "standard-version -a -s",
     "prepublish": "in-publish && npm run build:webui || not-in-publish",
+    "flow": "flow",
     "test": "mocha ./test/functional ./test/unit --reporter=spec --full-trace",
     "pre:ci": "npm run build:webui",
     "test:ci": "npm run test:coverage",

yarn.lock

@@ -2852,6 +2852,10 @@ flatten@^1.0.2:
   version "1.0.2"
   resolved "https://registry.npmjs.org/flatten/-/flatten-1.0.2.tgz#dae46a9d78fbe25292258cc1e780a41d95c03782"
 
+flow-bin@0.52.0:
+  version "0.52.0"
+  resolved "https://registry.npmjs.org/flow-bin/-/flow-bin-0.52.0.tgz#b6d9abe8bcd1ee5c62df386451a4e2553cadc3a3"
+
 flow-config-parser@^0.3.0:
   version "0.3.0"
   resolved "https://registry.npmjs.org/flow-config-parser/-/flow-config-parser-0.3.0.tgz#704916efba88cd2518ab4d8f933079571276138f"