chore: Fix typo in comment in common.ts (#1113)

* Fix typo in comment in common.ts

* Update src/utils/common.ts

Co-authored-by: Steve Ognibene <steve.ognibene@namely.com>

---------

Co-authored-by: Steve Ognibene <steve.ognibene@namely.com>

Author: frwdrik

src/utils/common.ts

@@ -63,7 +63,7 @@ export function original(value: Drafted<any>): any {
 
 /**
  * Each iterates a map, set or array.
- * Or, if any other kind of of object all it's own properties.
+ * Or, if any other kind of object, all of its own properties.
  * Regardless whether they are enumerable or symbols
  */
 export function each<T extends Objectish>(