fix: Prefer flipping submenu to left side over to the bottom

[frankieyan]

Short description

In #844, submenus were set up to render on the bottom if there isn't enough space to the right. Visually this doesn't look quite correct when the menu is placed closer to the right side of the screen and that there's space on the left, so having the left side as the first fallback should be preferred.

Before	After

PR Checklist

• Added tests for bugs / new features
• Updated docs (storybooks, readme)
• Executed npm run validate and made sure no errors / warnings were shown
• Described changes in CHANGELOG.md
• Bumped version in package.json and package-lock.json (npm --no-git-tag-version version <major|minor|patch>) ref
• Reviewed and approved Chromatic visual regression tests in CI

Versioning

Patch