bug: replace all API "Response()" with new "APIResponse()"

[TreyWW]

What version of MyFinances are you currently using?

latest

What device type are you currently facing the issue on?

No response

Describe the bug

Replace all old public API responses from:

    return Response({"success": True, "invoice_id": invoice.id}, status=status.HTTP_201_CREATED)

new:

APIResponse(True, {"invoice_id": invoice.id})