xF2 Add-on Svg Template by Xon 2.6.0

• Requires StandardLib v1.19.0+
• If installed, requires Redis Cache 2.17.0+
• XF2.3 compatibility update
• php 8.4 compatibility fix

• Fix "[E_DEPRECATED] strlen(): Passing null to parameter #1 ($string) of type string is deprecated" when attempting to save a new template with an invalid name