Updating Google verification codes in a new store theme

When setting up my store, I had to embed code in the store theme in order to be verified by Google Analytics, Google Merchant Center and Zoho Mail. I just changed my store theme. Does that mean I need to copy and paste those same codes into the new store theme? If so, where would I even find those codes? Also, what should I do about apps that are no longer working properly in the new theme? I am a novice. Advice is greatly appreciated.

Hi there you find these codes in the theme.liquid they are on top, and you need to add them to the new theme’s theme liquid, in the same place. I hope this makes sense