Add real-time value display feature to plugin-html-slider-response

[raynatang]

Added real-time value display feature to plugin-html-slider-response: if the parameter value_display is set as true, the slider's value will be displayed in real-time below the slider as participants adjust it.

Before participants adjust the slider, the displayed value will be the slider_start value

[changeset-bot]

⚠️ No Changeset found

Latest commit: 50de647

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[jodeleeuw]

Hi @raynatang,

Thanks for the PR!

I think this is worth adding. A few things that would be needed before we can merge:

1. I think one PR that includes updates to all the *-slider-response plugins would be ideal.
2. I think making the default display false instead of true, so that existing experiments are unaffected by the update.
3. Changes to the corresponding documentation files.

If you're willing to work on any of that - great!

[raynatang]

Thank you! I'll work on them!