Add-ons Report Improvements by Xon 2.21.6

• Fix report title's been indexed into search as escaped
  • Re-indexing reports/reports comments really only matters if using ElasticSearch Essential's exact title match feature.
• Fix double escaping when rendering report titles in search results

• Fix report comment alert would miss-classify warning operation types as new warnings

• Fix "Call to undefined method XF\Entity\User::canReportSearch()" that can occur during upgrading
• When a post is being reported; inject 'user has been warned for this post' notice, and a 'has been reply-banned' notice if SV/ThreadReplyBanTeeth add-on is installed