[Polish] Added test page for author aide and fixed version LRN-4482

[bhavya-shukla-lrn]

Checklist

• [ ] Feature

• [ ] Bug

• [ ] ChangeLog.md updated

• [ ] Tests added

• [ ] All testsuite passes

• [ ] make dist completed successfully

[markus-liang-lrn]

@bhavya-shukla-lrn it looks good, but I don't get it why do you need to add sample page for authoring-item? also why it is under ai folder?