va-file-input-multiple allow for showing the slot conditionally

[ataker]

Description

Developers want to be able to show the slot additional info conditionally. Example: if a PDF is password protected, show a field to enter a password.

Details

Currently there is no way to pass specific data to a slot of an individual file input in va-file-input-multiple. The slots are appended to the individual file inputs in componentDidRender in a forEach loop.

The two possible solutions I can think of is:

• Accept a prop that tells us which file input should show slot content or
• Accept a prop that's a rule that is run to tell the component to show the slot content

Acceptance Criteria

• Developers can conditionally show slot content