feat: Accessibility improvements (#7224)

* feat: adds a11y for ContentType & Responses region

* feat: adds a11y to expandable/collapsible elements

* fix: add aria label to select element for content types

* fix: add aria label prop to contentType component

* Change optag to h3 for better tag hierarchy


Co-authored-by: ediiotero <eddie.otero@oddball.io>
Co-authored-by: Mike Lumetta <mike.lumetta@adhocteam.us>
Co-authored-by: Alexander Valencia <alex.valencia@adhocteam.us>

src/helpers/create-html-ready-id.js

@@ -0,0 +1,10 @@
+/**
+ * Replace invalid characters from a string to create an html-ready ID
+ *
+ * @param {string} id A string that may contain invalid characters for the HTML ID attribute
+ * @param {string} [replacement=_] The string to replace invalid characters with; "_" by default
+ * @return {string} Information about the parameter schema
+ */
+export default function createHtmlReadyId(id, replacement = "_") {
+  return id.replace(/[^\w-]/g, replacement)
+}