Updated shoppingContent and tagManager

[RajeshGogo]

Description

Updated shoppingContent.gs, and tagManager.gs
changed var to const and let,
added exception handling (try-catch)

Fixes # 223968724 223969109

Is it been tested?

• Development testing done

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have performed a peer-reviewed with team member(s)
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules