Filter Thread Fields 1.0.6

Removed '???' server error log message (this was harmless, but annoying).

• Fixed bug when filtering multi-select and checkbox fields
• Fixed bug when saving threads with multi-select and checkbox fields
• Number textbox thread field filters now have a min/max range
• Standard textbox thread field filters now return partial matches
• A more economical branding-free license is now available here (single-addon single-site/1SL)

Fixed compatibility with older XF versions (XF 2.0/2.1/2.2)

Changed minimum PHP version from implicit 8.0 to explicit 7.1.

Fixed InvalidArgumentException error.