Editing Shopify Chat wording from us to me

Where is the code to change the text from Chat with us to Chat with me? I can’t seem to find where the code is to apply the one change:

Hi @Lychee88 ,

You can change the setting of the Shopify inbox since it is rendered as an iframe. Only the app owner can do so. You might have to contact Shopify if they allow it in their end.