Delete button is always gone in repeating groups when hideTable is enabled

### Description

The delete button is by default visible in repeating groups, but even with the property `deleteButton` set to True, it will not be visible if the mode is set to `hideTable`.

This means that if a user adds another entry to the list by mistake, they will not be able to get out of it unless they fill out the whole group in such a way that validation on save works, or they refresh the page.

Neither of these are good solutions, and a lot of users would simply be stuck - at a loss for what to do.

### Additional Information

Example case where delete button is missing:

Start by reproducing the repeating-group case with mode set to hideTable and deleteButton set to True, then search the frontend code for those property names and the delete control. Done means the delete button remains visible in hideTable mode and allows an accidentally added entry to be removed.

Written by the indexing model from the issue text.