Add missing deps

package.json

@@ -4,6 +4,7 @@
   "private": true,
   "dependencies": {
     "@areknawo/rex": "^2.0.0",
+    "@babel/runtime-corejs2": "^7.3.1",
     "@material-ui/core": "^3.5.1",
     "@material-ui/icons": "^3.0.1",
     "@types/jest": "^23.3.13",

yarn.lock

@@ -832,6 +832,14 @@
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/plugin-transform-typescript" "^7.1.0"
 
+"@babel/runtime-corejs2@^7.3.1":
+  version "7.3.1"
+  resolved "https://registry.yarnpkg.com/@babel/runtime-corejs2/-/runtime-corejs2-7.3.1.tgz#0c113242e2328f9674d42703a89bee6ebebe9a82"
+  integrity sha512-YpO13776h3e6Wy8dl2J8T9Qwlvopr+b4trCEhHE+yek6yIqV8sx6g3KozdHMbXeBpjosbPi+Ii5Z7X9oXFHUKA==
+  dependencies:
+    core-js "^2.5.7"
+    regenerator-runtime "^0.12.0"
+
 "@babel/runtime@7.1.5":
   version "7.1.5"
   resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.1.5.tgz#4170907641cf1f61508f563ece3725150cc6fe39"
@@ -3934,7 +3942,7 @@ core-js@^1.0.0:
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
   integrity sha1-ZSKUwUZR2yj6k70tX/KYOk8IxjY=
 
-core-js@^2.4.0, core-js@^2.5.0:
+core-js@^2.4.0, core-js@^2.5.0, core-js@^2.5.7:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.3.tgz#4b70938bdffdaf64931e66e2db158f0892289c49"
   integrity sha512-l00tmFFZOBHtYhN4Cz7k32VM7vTn3rE2ANjQDxdEN6zmXZ/xq1jQuutnmHvMG1ZJ7xd72+TA5YpUK8wz3rWsfQ==