Marks the pill button of every registered pane as having a desktop equivalent.
⚠️ Reuses the EXISTING data-gl-desktop-slot contract rather than inventing a rule: the
kernel stylesheet already hides .gl-map-toolbar__btn[data-gl-desktop-slot] above 1440px,
where the side panel shows the same content as a tab. Without this, a pane owner would get
both a tab and a pill on a wide screen — two controls for one panel.
Marks the pill button of every registered pane as having a desktop equivalent.
⚠️ Reuses the EXISTING
data-gl-desktop-slotcontract rather than inventing a rule: the kernel stylesheet already hides.gl-map-toolbar__btn[data-gl-desktop-slot]above 1440px, where the side panel shows the same content as a tab. Without this, a pane owner would get both a tab and a pill on a wide screen — two controls for one panel.