更新紀錄

1. Add path tool & relevant functions 2. Optimized slides view 3. Optimized SVG parsing 4. Optimized undo & redo functions 5. Fixed known issues

1. Added support for multi-page artwork documents 2. Added slides view for flexible page switching 3. Optimized UI controls with round-corner style 4. Optimized icons 5. Fixed known issues * Optimized bootstrapping installer

1. Added support for SVG import & edit 2. Added special character library 3. Optimized layer views to support selecting cascaded layers 4. Optimized pen tool & isogon tool 5. Optimized undo & redo mechanism 6. Optimized some UI controls 7. Removed pipeline class