Bump eslint-plugin-react version and update webpack config (facebook#6132)

* Bump eslint-plugin-react version

* Move eslint-plugin-react settings into eslint-config-react-app

* Add react/no-typos rule

Author: ianschmitz

config/webpack.config.js

@@ -314,7 +314,6 @@ module.exports = function(webpackEnv) {
                 // @remove-on-eject-begin
                 baseConfig: {
                   extends: [require.resolve('eslint-config-react-app')],
-                  settings: { react: { version: '999.999.999' } },
                 },
                 ignore: false,
                 useEslintrc: false,

package.json

@@ -44,7 +44,7 @@
     "eslint-plugin-flowtype": "2.50.1",
     "eslint-plugin-import": "2.14.0",
     "eslint-plugin-jsx-a11y": "6.1.2",
-    "eslint-plugin-react": "7.11.1",
+    "eslint-plugin-react": "7.12.3",
     "file-loader": "2.0.0",
     "fork-ts-checker-webpack-plugin-alt": "0.4.14",
     "fs-extra": "7.0.1",