Documentation improvement for `Select`

[wli]

** Is this for an existing documentation file? **
https://sveltematerialui.com/demo/select/

** What needs improvement? **
The documentation says that you just need npm i -D @smui/select. If you only install that, the styling is completely incorrect. I had to additionally install at least the following packages for a basic select box to work:

• @smui/list
• @smui/menu
• @smui/menu-surface

Please update the documentation to include these other dependencies, or fix the @smui/select package to automatically install these dependencies too.