feat: added sidebar widget drop

fix: corrected color picker value, drag and drop

src/utils/widget.js

@@ -0,0 +1,16 @@
+import Widget from "../canvas/widgets/base"
+
+// checks if the object is instance is instance of widget class
+export const isSubClassOfWidget = (_class) => {
+
+    return  Widget.isPrototypeOf(_class) || _class === Widget
+}
+
+
+
+export const isInstanceOfWidget = (_class) => {
+
+    console.log("Widget is instance of Object: ", _class)
+
+    return _class instanceof Widget
+}