Add context menu to search results for better file navigation

[jelveh]

Currently, search results are displayed as a simple list without additional interaction options other than being opened when clicked. To improve user experience and file navigation, we should add a context menu to search result items.

Feature Requirements:

1. Implement a context menu using the existing UIContextMenu
2. The context menu should appear on right-click of any search result item
3. Include two primary actions:
   • Open File (can also be triggered by left-clicking the item)
   • Open Containing Folder (reveals the file's location in File Explorer)

Technical Notes:

• Use the existing UIContextMenu component for consistency with the rest of the UI
• The "Open File" action can reuse the same functionality as clicking the item
• The "Open Containing Folder" action should:
  • Navigate to the parent directory of the file
  • Optionally highlight/select the file in its containing folder
  • You will need to use the UIWindow component for this:

    
    UIWindow({
        path: [ITEM PATH],
        title: path.basename([ITEM PATH]),
        icon: await item_icon({is_dir: true, path: [ITEM PATH]}),
        uid: [ITEM UID],
        is_dir: [IS DIR?],
        app: 'explorer',
    });```