1. Add fishbone diagram layout and timeline layout
2. Optimize the rich text editing function and optimize the experience of some functions
3. Add keyboard shortcuts
4. Fix the problem that the file cannot be found when exporting the file
1. Add fishbone diagram layout and timeline layout
2. Optimize the rich text editing function and optimize the experience of some functions
3. Add keyboard shortcuts
4. Fix the problem that the file cannot be found when exporting the file