Add internal variables that we can use in zed config files like workspaceFolder or env:PATH

[MaxDev9]

For example I would like to do something like this in my project

.zed/settings.json

{
  "terminal": {
    "line_height": "comfortable",
    "env": {
      "PATH": "${env:PATH}:${workspaceFolder}/bin"
    }
  }
}

Unfortunately, I don't believe this functionality exist because when I print the PATH in the terminal it just gives me this.

${env:PATH}:${workspaceFolder}/bin

Meaning it does not replace ${} with any internal variables.

This means I have to manually add every single path I need for each workspace. That is of course if I choose to change the env:PATH for that workspace

It just seems that the current way of doing this isn't very optimal, and adding the ability to do this would fix that.