Major JUCE features and updates

This file lists the more notable headline features. For more detailed info
about changes and bugfixes please see the git log and BREAKING_CHANGES.md.

Version 8.0.7

• Improved unicode handling and performance in TextEditor
• Fixed iOS external device sample rate handling in iOS 18
• Added many Direct2D bug fixes and performance improvements
• Added a new MessageManager::callSync counterpart to callAsync
• Fixed a crash in Ableton when closing a plug-in window
• Improved sscache compatibility
• Fixed some PopupMenu bugs
• Updated Zlib