ops, my bad, I totally messed it up 
.
Here is how looks the table/1 function where I just added a single line like @codeanpeace did (inside tbody section):
<tbody
id={@id}
phx-update={match?(%Phoenix.LiveView.LiveStream{}, @rows) && "stream"}
class="relative text-sm leading-6 border-t divide-y divide-zinc-100 border-zinc-200 text-zinc-700"
>
<tr class="hidden last:table-row"><td>No Streamed Items</td></tr>
<tr :for={row <- @rows} id={@row_id && @row_id.(row)} class="group hover:bg-zinc-50">
...
What I also noticed is that “No Streamed items” also get visible right after displaying a modal to create a new Item.
