v3.6.0

Changelog

• Support for regex-validated fields in pre-chat form
• Improved email loading for email channel when using IMAP
• Markdown support for the telegram channel
• Ability to update multiple files in Facebook & Instagram channels
• Custom branding support for the help centre
• Numerous performance improvements and bug fixes

Thanks to @LiamAshdown, @mongkondev, @s00d, @Arooba-git, @surabhisuman, @gsemyong, @prepstarr, @abehnamfard, @Jatin-MYST, @giquieu, @cyprusad for the contributions