chore: rename accessibility quiz (#44206)

* chore: rename files

* chore: update codebase

* chore: proper title case

* chore: preformatted block name

curriculum/challenges/_meta/learn-accessibility-by-building-a-quiz/meta.json

@@ -1,8 +1,8 @@
 {
-  "name": "Accessibility Quiz",
+  "name": "Learn Accessibility by Building a Quiz",
   "isUpcomingChange": true,
   "usesMultifileEditor": true,
-  "dashedName": "accessibility-quiz",
+  "dashedName": "learn-accessibility-by-building-a-quiz",
   "order": 42,
   "time": "5 hours",
   "template": "",