l2: refresh the type column when a row is reused

The paint loop reuses existing rows and rewrites port, MAC, VLAN and the
delete button, but never the type cell - only the insert path set it. With a
fixed row order that stayed invisible, since a row usually landed back where
it was. Sorting moves rows, so every other column followed the data while
type kept the previous row's value, which made sorting by type look broken
when the sort itself was correct.

html/l2.js

@@ -131,6 +131,7 @@ function paintL2(tbl, s)
       tbl.rows[i+1].cells[0].innerHTML = `${e.port}`;
       tbl.rows[i+1].cells[1].innerHTML = `${e.mac}`;
       tbl.rows[i+1].cells[2].innerHTML = `${e.vlan}`;
+      tbl.rows[i+1].cells[3].innerHTML = `${e.type}`;
       tbl.rows[i+1].cells[4].innerHTML = '<button type="button" onclick="delL2(' + e.idx + ');">' + t('l2_delete') + '</button>';
     } else {
       const tr = tbl.insertRow();