[BUG] Fix Status Bar Item Persistence

[saketsarin]

Describe the bug
The status bar item occasionally disappears after certain VSCode operations, such as switching windows or after extension host reloads.

To Reproduce

1. Connect to a browser tab
2. Switch to a different VSCode window and back
3. The status bar indicator is sometimes missing

Expected behavior
Status bar item should remain visible and functional regardless of window switching or VSCode operations.

Technical Details

• Update status bar initialization in relevant monitor classes
• Ensure status bar visibility is properly restored on activation events
• Check for existing status bar item before creating a new one

Environment

• Affects all supported platforms