AP - Style Suite 2.14.2

• Fix $assetId must be type int, string given
• Improve color validation with additional checks
  • Comma-less values
  • Incorrect number of arguments
  • Out-of-range values
• Migrate Color and Css validation code out of UserStyleRepository and into their own Validator classes
• Fix post styles not applying in conversations
• Improve handling of postbit font color/text shadow
• Improve handling of postbit filter layer

This update was originally planned to be a port of the jQuery code to vanilla Javascript in preparation for XF2.3, but it's been postponed until the next version to address some bug reports and perform some cleanups.

• Improve overall abstraction
• Improve overall reliability when upgrading from versions as old as 2.7.1
• Fix Call to undefined method apathy\StyleSuite\Setup::hasAddonInstalled() during the upgrade process
• Improve Siropu Chat 2 user tagging fix as it could cause the chat to stop working in certain instances