How to open the sidebar and focus on it!

keybindings.json

{
  "key": "space b",
  "command": "vim.remap",
  "when": "sideBarFocus",
  "args": {
    "after": ["<leader>", "o"]
  }
}

settings.json

 "vim.normalModeKeyBindingsNonRecursive": [
    // focus side bar
    {
      "before": ["<leader>", "o"],
      "commands": ["workbench.action.focusSideBar"]
    }
]

How to merge it, or how to complete this function?

I wanna the effect similar with nvim tree:

1. Open the side bar, then focus on in.
2. Close the side bar, then return the editor.
3. If focus on side bar, I hope it can focus directly on editor.

Start by reproducing the keybindings.json and settings.json configuration shown in the issue, using the vim.remap and workbench.action.focusSideBar commands. Trace how the extension handles sidebar focus and keybinding conditions. Done means one binding opens and focuses the sidebar, closes it back to the editor, and returns focus to the editor when invoked from the sidebar.