only show sidebar resizer when sidebar is actually shown

commafeed-client/src/pages/app/Layout.tsx

@@ -157,6 +157,7 @@ export default function Layout(props: LayoutProps) {
                     <Box className={classes.sidebarContent}>{props.sidebar}</Box>
                 </AppShell.Section>
             </AppShell.Navbar>
+            <OnDesktop>
                 <Draggable
                     axis="x"
                     defaultPosition={{
@@ -179,6 +180,7 @@ export default function Layout(props: LayoutProps) {
                         }}
                     ></Box>
                 </Draggable>
+            </OnDesktop>
 
             <AppShell.Main id="content">
                 <Suspense fallback={<Loader />}>