feat: add ability to disable SelectMenu

[alangsto]

Description

I noticed that passing disabled as a prop to the SelectMenu component in a PR that I was working was not having the desired effect. That is because the Button component in the SelectMenu component is wrapped by a div that is receiving the additional props.

I opted to add an additional disabled prop to the SelectMenu component with a default value of false. This additional prop is then used to determine whether or not the button is disabled or not.

Deploy Preview

https://deploy-preview-3138--paragon-openedx.netlify.app/components/menu/select-menu/

Merge Checklist

• If your update includes visual changes, have they been reviewed by a designer? Send them a link to the Netlify deploy preview, if applicable.
• Does your change adhere to the documented style conventions?
• Do any prop types have missing descriptions in the Props API tables in the documentation site (check deploy preview)?
• Were your changes tested using all available themes (see theme switcher in the header of the deploy preview, under the "Settings" icon)?
• Were your changes tested in the example app?
• Is there adequate test coverage for your changes?
• Consider whether this change needs to reviewed/QA'ed for accessibility (a11y). If so, please request an a11y review for the PR in the #wg-paragon Open edX Slack channel.

Post-merge Checklist

• Verify your changes were released to NPM at the expected version.
• If you'd like, share your contribution in #show-and-tell.
• 🎉 🙌 Celebrate! Thanks for your contribution.

[netlify]

✅ Deploy Preview for paragon-openedx ready!

Name	Link
🔨 Latest commit	fd1e7fd
🔍 Latest deploy log	https://app.netlify.com/sites/paragon-openedx/deploys/6696a646384f5f00099136c5
😎 Deploy Preview	https://deploy-preview-3138--paragon-openedx.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[rijuma]

Nice catch!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.25%. Comparing base (cecbc9f) to head (fd1e7fd).
Report is 142 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3138   +/-   ##
=======================================
  Coverage   93.25%   93.25%           
=======================================
  Files         249      249           
  Lines        4388     4388           
  Branches     1035     1037    +2     
=======================================
  Hits         4092     4092           
  Misses        290      290           
  Partials        6        6           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[openedx-semantic-release-bot]

🎉 This PR is included in version 22.7.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[openedx-semantic-release-bot]

🎉 This PR is included in version 23.0.0-alpha.7 🎉

The release is available on:

• npm package (@alpha dist-tag)
• GitHub release

Your semantic-release bot 📦🚀