update whatsup version & implementation

Author: iminside

frameworks/keyed/whatsup/.babelrc

@@ -10,5 +10,12 @@
         ],
         "@babel/typescript"
     ],
-    "plugins": ["@babel/transform-typescript", "@babel/proposal-class-properties", "@whatsup/transform-jsx"]
+    "plugins": [
+        "@babel/transform-typescript",
+        ["@babel/plugin-proposal-decorators", { "legacy": true }],
+        ["@babel/plugin-proposal-class-properties", { "loose": true }],
+        ["@babel/plugin-proposal-private-methods", { "loose": true }],
+        ["@babel/plugin-proposal-private-property-in-object", { "loose": true }],
+        "@whatsup/transform-jsx"
+    ]
 }