How to type annotate keys with spaces?

```lua
---@class MyT
---@field "hello world" number
local t = {}

t["hello world"] = 2

print(t["hello world"])
```


<img width="698" height="197" alt="Image" src="https://github.com/user-attachments/assets/863c6311-2839-4b4e-9768-4eed13bb2510" />