I am quite new to magento :)
We are using an external theme (hyva) which inherits from luma. This external theme does not have a checkout module, so when we navigate to the checkout form, it falls back to the parent theme.
Now I need to edit the checkout form. But I don't know where to add my files.
If I put it inside
app/design/Vendor/Theme/..., it will be added to the child theme.
Where should I put my edited file, to make it add to the parent theme?