feat(toolbox): alias for `toolbox enter`

plugins/toolbox/README.md

@@ -17,3 +17,9 @@ You can use it by adding `$(toolbox_prompt_info)` to your `PROMPT` or `RPROMPT`
 ```zsh
 RPROMPT='$(toolbox_prompt_info)'
 ```
+
+## Aliases
+
+| Alias | Command              | Description                            |
+|-------|----------------------|----------------------------------------|
+| tb    | `toolbox enter`      | Enters the toolbox environment         |

plugins/toolbox/toolbox.plugin.zsh

 function toolbox_prompt_info() {
   [[ -f /run/.toolboxenv ]] && echo "⬢"
 }
+
+alias tb="toolbox enter"