Update dependencies and improve build system

src/components/rectangle.js

@@ -3,7 +3,7 @@ import mapElementFactory from './mapElementFactory.js'
 const props = {
   bounds: {
     type: Object,
-    twoWay: true
+    twoWay: true,
   },
   draggable: {
     type: Boolean,
@@ -15,8 +15,8 @@ const props = {
   },
   options: {
     type: Object,
-    twoWay: false
-  }
+    twoWay: false,
+  },
 }
 
 const events = [
@@ -30,7 +30,7 @@ const events = [
   'mouseout',
   'mouseover',
   'mouseup',
-  'rightclick'
+  'rightclick',
 ]
 
 export default mapElementFactory({