Create index

curl --request POST \
  --url https://api.fluxend.app/tables/{tableUUID}/indexes \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "columns": [
    "<string>"
  ],
  "is_unique": true,
  "name": "<string>",
  "projectUUID": "<string>"
}
'

{
  "content": "<unknown>",
  "errors": [
    "<string>"
  ],
  "metadata": "<unknown>",
  "success": true
}