Mind Map from Text and Audio Update

🛠 Fixes

• Fixed infinite loop and segmentation errors when creating mind maps from pasted text
• Fixed misplaced custom cursor on iPhone Safari Before/After
• Fixed processing bubble size on iPhone Safari Demo
• Fixed issue with empty branches after segmentation (cleaner maps)
• Improved S3 attachment saving reliability by using file locking instead of temporary renaming

✨ New Features

• Added ability to create mind maps directly from audio input
  Users can now generate structured mind maps from recordings, making it easier to capture and organize ideas on the go.
• Added ability to create mind maps from pasted text when audio capture isn’t available (e.g. YouTube on iPhone or Android)
  Screenshot
  Demo Video
• Added support for .ivvi file format in import/export
  Allows saving and sharing projects in a native mind map format with full structure and settings

🔄 Improvements

• Enhanced mind map creation flow — now works seamlessly whether transcription comes from voice or text
• Improved theme customization
  Added multiple color sets and new theme management options
• Improved custom themes handling with background color selection and better visual consistency
• Refactored mind map creation buttons for cleaner layout and better usability

And other improvements