chore(gulp): update core task to run done on compile

src/components/icon/icon.scss

@@ -7,13 +7,15 @@
 
 
 ion-icon {
-  visibility: inherit !important;
-
   display: inline-block;
 
   font-size: 1.2em;
 }
 
+ion-icon.hydrated {
+  visibility: inherit;
+}
+
 ion-icon[small] {
   min-height: 1.1em;
 

src/util/interfaces.ts

@@ -709,7 +709,6 @@ export interface VNodeData {
   on?: any;
   vkey?: Key;
   vns?: string; // for SVGs
-  [key: string]: any; // for any other 3rd party module
 }