Change broken selection in enable_button_after parameter

[levigoldberg]

The button class was not being selected correctly resulting in a broken enable_button_after parameter

[changeset-bot]

🦋 Changeset detected

Latest commit: fe53143

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@jspsych/plugin-html-button-response	Patch

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[jadeddelta]

@levigoldberg great catch, LGTM! :) thanks for the contribution- and just for future notice, if you're making a change directly onto the codebase (i.e. not documentation/examples), it's required to add a changeset but i've gone ahead and put one in for you!

[jodeleeuw]

@jadeddelta is this an issue in any of the other button plugins?

(might be worth adding a test case to verify that disabling is happening as expected)

[jadeddelta]

looks like it's not an issue in other plugins, and in fact this specific plugin does have a disabled button test, it was just skipping it because the array that querySelectorAll generated was always empty, meaning it would never reach the expect statements. went ahead and added a check for it, should all be good now!