Xon - Multi Prefix 2.16.3

• Update installer to better handle very large number of threads upgrading

• Require StandardLib v1.22.0+
• Improvements & work-around when filtering by prefixes on forums with very large number of threads
  • Add fast-path mode when only filtering by a single prefix
  • Reduce query complexity when filtering by multiple prefixes. Still more expenisve than single prefix filtering
  • Add options Single prefix filtering (all) (default false) and Single prefix filtering (for guests or robots) (default false)
    • Disables multi-prefix filtering, this is a performance optimization for forums with very large number of prefixed threads.

• Fix XF2.3 compatibility with "Move thread prefixes location:Sub-title" style property and using em/rem font-sizes

• DB Tech shop v7.0.0+ support
• Fix DB Tech eCommerce v4.1.0+ prefix filtering support

• DB Tech shop v7.0.0+ support
• Fix DB Tech eCommerce v4.1.0+ prefix filtering support

• Fix selecting (No prefix) by default in the forum filter dropdown

• Fix "[XenConcept] Project Manager" support, if installed require v2.1.0+

• Fix missing non/any support for XC/ProjectManager
• Fix possible invalid php array reference accessing for prefix input
• Fix "prefix help" text not showing when using quick-thread creation

• Fix minimum prefixes option did got get applied correctly when removing all prefixes
• Fix edge case when the thread is moved and all prefixes removed did not correctly remove prefixes
• Adjust thread prefix handling for better compatibility with 3rd party add-ons when removing all prefixes

• Fix editing the first post of a thread did not always reliably update the prefix list in the title
• Fix editing a thread did not actually inject the explicit 'no prefix' option.
  • Instead of needing to awkwardly click away when the selection dialog pops-up, instead on click on the no-prefix option all selected prefixes are removed.