Clean up some workarounds for old upstream bugs (#40199)

* We no longer need to care about nanoid v3 thinking "browser === esm",
  because the GB package that had that dep no longer does.
* Various `jsx-a11y/label-has-associated-control` ignores referring to
  jsx-eslint/eslint-plugin-jsx-a11y#869 seem to be fixed now that #39736
  requires we use `htmlFor`. The one place still needing an ignore is
  jsx-eslint/eslint-plugin-jsx-a11y#578 instead.
* Remove reference to deleted renovate issue.
* Move reference to a Storybook bug to the code actually implementing
  the workaround.
* Update Storybook FAQ reference.
* Remove TODO references to a fixed Storybook bug (and fix a wrong prop
  in one story).
* Remove workaround for WordPress/WordPress-Coding-Standards#2390.

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/11896972496

Upstream-Ref: Automattic/jetpack@62e385b

src/contact-form/class-admin.php

@@ -1428,8 +1428,7 @@ public function grunion_recheck_queue() {
 		$query = 'post_type=feedback&post_status=publish';
 
 		if ( isset( $_POST['limit'] ) && isset( $_POST['offset'] ) ) {
-			// phpcs:ignore Generic.Strings.UnnecessaryStringConcat.Found -- Avoiding https://github.com/WordPress/WordPress-Coding-Standards/issues/2390
-			$query .= '&posts_per' . '_page=' . (int) $_POST['limit'] . '&offset=' . (int) $_POST['offset'];
+			$query .= '&posts_per_page=' . (int) $_POST['limit'] . '&offset=' . (int) $_POST['offset'];
 		}
 
 		$approved_feedbacks = get_posts( $query );