fix(sidebar): remove row corner radius from tree items

apps/desktop/src/components/sidebar/TreeItem.vue

@@ -1506,7 +1506,6 @@ function onKeydown(event: KeyboardEvent) {
             'tree-item-connection-tint': connectionColor,
             'hover:bg-accent': node.type !== 'connection',
             'hover:bg-sidebar-accent': node.type === 'connection',
-            rounded: !selectionVisual.rowSelected,
             'tree-item-active': selectionVisual.rowSelected,
             'tree-item-active--selection-set': selectionVisual.usesSelectionSetHighlight && selectionVisual.rowSelected,
             'tree-item-highlight': highlighted,