complete interactions/buttons.mdx page

[dlchamp]

Description

Complete the interactions/buttons page

• Add basic View example
• Add example for handling timeout and View.stop (disabled buttons and clear_items)
• Move low level example to Views vs low-level section

Relevant Issues

Closes #59

[dlchamp]

ty! This looks good, most of my comments are about formatting and other minor nits.

A more general comment about the entire guide's structure: With the addition of this page, the guide starts having some redundancy between the pages for buttons and select menus, both regarding view timeouts and low-level components. This isn't relevant to this PR directly, but we should refactor common sections into a separate page in the future.

I was thinking the same thing as I was working on this.