Fix MUI/material-ui RangeWidget missing htmlFor and schema.title

[kyleawayan]

Reasons for making this change

The RangeWidget for both the Material UI v4 and v5 themes did not have the htmlFor prop, which may cause accessibility issues.

Also I noticed that the other widgets included schema.title in the FormLabel, so I went ahead and included that also just to ensure consistency with the other widgets' FormLabels. Also I don't think the id prop is necessary either (it's not in the other FormLabels either).

I also searched both @rjsf/mui and @rjsf/material-ui to make sure there was no other FormLabel components missing the htmlFor prop. RangeWidget was the only one missing it. I also found no other components that were missing the schema.title either.

Checklist

• I'm updating documentation
  • I've checked the rendering of the Markdown text I've added
• I'm adding or updating code
  • I've added and/or updated tests. I've run npm run test:update to update snapshots, if needed.
  • I've updated docs if needed
  • I've updated the changelog with a description of the PR
• I'm adding a new feature
  • I've updated the playground with an example use of the feature

[heath-freenome]

@kyleawayan You will have to fix the snapshots using npm run test:update and add the result to this PR

[heath-freenome]

Also, please update the CHANGELOG.md file with a note under the beta.14 section

[kyleawayan]

@heath-freenome Updated the test snapshots and added to the changelog