Updated dependencies

Author: João Moura

.babelrc

@@ -1,18 +1,10 @@
 {
   "presets": [
-    "react",
-    ["env", {
-      "targets": {
-        "browsers": [
-          ">0.2%",
-          "not dead",
-          "not ie <= 11",
-          "not op_mini all"
-        ]
-      }
+    "@babel/preset-flow",
+    "@babel/preset-react",
+    ["@babel/preset-env", {
+      "targets": ">0.2%, not dead, not ie <= 11, not op_mini all"
     }]
   ],
-  "plugins": [
-    "transform-flow-strip-types",
-  ]
+  "plugins": ["@babel/plugin-proposal-class-properties"]
 }