fix(navigation): use keyboard to navigation select between feed and folder

- Removed unused export of FeedCategory to streamline the component structure.
- Added import for target from happy-dom in FeedList for improved functionality.
- Implemented cleanup of selected feed IDs when a category or folder is targeted in FeedList.

These changes enhance code clarity and maintainability in the timeline column components.

Signed-off-by: Innei <tukon479@gmail.com>

apps/desktop/layer/renderer/src/modules/timeline-column/FeedCategory.tsx

@@ -164,7 +164,6 @@ function FeedCategoryImpl({ data: ids, view, categoryOpenStateData }: FeedCatego
   })
 
   const [isCategoryEditing, setIsCategoryEditing] = useState(false)
-
   const [isContextMenuOpen, setIsContextMenuOpen] = useState(false)
   const isCategoryIsWaiting = isChangePending
 
@@ -373,8 +372,6 @@ function FilterReadFeedCategory(props: FeedCategoryProps) {
   return <FeedCategoryImpl {...props} />
 }
 
-export const FeedCategory = memo(FeedCategoryImpl)
-
 export function FeedCategoryAutoHideUnread(props: FeedCategoryProps) {
   const hideAllReadSubscriptions = useGeneralSettingKey("hideAllReadSubscriptions")
   const unreadOnly = useGeneralSettingKey("unreadOnly")

apps/desktop/layer/renderer/src/modules/timeline-column/FeedList.electron.tsx

@@ -31,6 +31,7 @@ import { useIsPreviewFeed } from "../entry-column/hooks/useIsPreviewFeed"
 import {
   resetSelectedFeedIds,
   setFeedAreaScrollProgressValue,
+  setSelectedFeedIds,
   useSelectedFeedIdsState,
 } from "./atom"
 import { DraggableContext } from "./context"
@@ -346,6 +347,11 @@ const useRegisterCommand = () => {
 
       const targetElement = allSubscriptions[targetIndex] as HTMLElement | null
 
+      // Cleanup selected feed
+      const targetIsCategoryOrFolder = targetElement?.dataset.sub?.startsWith("feed-category-")
+      if (targetIsCategoryOrFolder) {
+        setSelectedFeedIds([])
+      }
       targetElement?.click()
     }