feat(timeline-editor): Add floating properties panel and effect tooltips

UI improvements:
- Properties panel now floats in top-right corner (fixed position)
- Added collapse/expand button for properties panel
- Panel slides out of view when collapsed, button appears to restore
- Effects now show only class name, full details on hover (tooltip)
- Tooltip shows: ClassName, Time, Priority, Args
- Effect bars reduced from 35px to 26px height (cleaner appearance)
- Effect spacing reduced from 40px to 30px (more compact stacking)
- Effects use flexbox centering for better text alignment
- Added hover highlight for better visual feedback

CSS changes:
- Properties panel: position fixed, z-index 1000, slide animation
- Collapse button appears at top-right when panel hidden
- Effects: single-line display with ellipsis overflow
- Improved padding and font sizing for compact effect bars

The properties panel is now always accessible without scrolling to the
bottom of the page, and effect bars are much cleaner while still showing
all information on hover.

0 files changed, 0 insertions, 0 deletions