Make it possible to remove "*" in legend

### Description

We have a case where we have one checkbox for the user to confirm the terms of privacy, which is required to move forward in the application:

Since the field is marked as required, the required symbol "*" is visible in the legend, even though the legend doesn't contain any text. We would like to have the opportunity to hide the symbol, and for example instead show the symbol in the label next to the checkbox.

### Additional Information

_No response_

### Tasks

_No response_

### Acceptance Criterias

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Start by locating the checkbox field and the legend rendering for required fields in the frontend. Verify the current behavior with the privacy-confirmation case, then make the required symbol independently hideable and confirm the symbol can appear beside the checkbox label instead.

Written by the indexing model from the issue text.