Make it configurable from init.lua

# Outline

Normal method of how to register command of VSCode extension to VSCode.

```ts
 vscode.commands.registerCommand('line-number-deco.xxxx', function () {}),
```

How to call VSCode extension command from Lua.

```lua
vim.fn.VSCodeNotify('line-number-deco.xxx')
```

# Think point

Were there exist commands wants to call from `init.lua`