Hide pinned source selector during migration without pinned sources

src/features/migration/screens/MigrationSelectDestinationSources.tsx

@@ -59,6 +59,8 @@ export const MigrationSelectDestinationSources = () => {
     const pinnedSourceIds = useMemo(() => Sources.getIds(Sources.filter(sources, { pinned: true })), [sources]);
     const enabledSourceIds = useMemo(() => Sources.getIds(Sources.filter(sources, { enabled: true })), [sources]);
 
+    const hasPinnedSources = !!pinnedSourceIds.length;
+
     const {
         selectedItemIds,
         areAllItemsSelected,
@@ -79,11 +81,13 @@ export const MigrationSelectDestinationSources = () => {
     useAppTitleAndAction(
         t`Select destination sources`,
         <>
+            {hasPinnedSources && (
                 <CustomTooltip title={t`Select pinned sources`}>
                     <IconButton color="inherit" onClick={() => setSelectionForKey('default', pinnedSourceIds)}>
                         <PushPinIcon />
                     </IconButton>
                 </CustomTooltip>
+            )}
             <CustomTooltip title={t`Select enabled sources`}>
                 <IconButton color="inherit" onClick={() => setSelectionForKey('default', enabledSourceIds)}>
                     <ToggleOnIcon />