Advanced Bb Codes Pack 1.15.19

• Harden installer when importing bb-code files to avoid breaking the install process in some known non-fatal error conditions.

• Require Standard Library by Xon v1.18.0+
• Fix javascript error when the editor dialog is available without the rich text editor (ie some mobile clients)

• Workaround XF2.2.12 bug where unexpected newlines are added when inserting a spoiler/ispoiler/custom bbcode which selects text from an entire line

• Code cleanup around utf8 string handling
• Rename "Threadmark category Id" option to "Staff threadmark category Id"
• Fix toggling bb-code mode on/off would cause duplicate newlines to be inserted for content inside an [indent] tag

• Rework how various front-end features are loaded for better maintainability
• Fix selecting text and inserting a quote when "Disable rendering quotes in editor" option was enabled would inject "undefined" instead of the quoted text
• Fix selecting text and triggering bbcode such as accordian/tabs/slider/etc, would strip formatting from the selected text when copying it into the dialog
• For XF2.2.11 and before:
  • Fix XF bug where inserting various bb-codes (stock and 3rd party) could result in malformed formatting due to inserting a block bb-code in the middle of formatting

• Fix [url] tags spanning lines where not merged as expected in rich text editor mode
• Fix inline spoiler did not work correctly with Samsung Internet Browser's forced dark-mode.

• Fix XF2.2.11 compatibility when editing posts

• Fix front-end editor not respecting abbr support and extended h1/h2/h3/h4 support is disabled
• Fix potential security vulnerability (which was addressed in XF2.2.11) for older XF2.2.x versions
  • Thanks goes to @PaulB and the @NamePros team

• Work-around for [indent] tags mangling text when combined with various block bb-codes and loading a draft or togglign bb-code mode off/on/off
• Switch CDN used for Latex support (aka MathJax) from jsdelivr to cdnjs.cloudflare.com

• Fix header(h2/h3/h4) bb-code did not round-trip as expected (actually enable workaround)