Add kinetic inertia for map pan and pinch-zoom gestures#7202
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🚀 Description
Add kinetic (inertia) scrolling to the map canvas for pan and pinch-zoom gestures.
Qt's pointer handlers report position but not velocity, so we sample finger positions over a sliding time window and compute release velocity ourselves. After the gesture ends, motion continues with exponential friction decay.
✨ Key Changes
Demo
Screen.Recording.2026-03-25.at.3.15.25.PM.mov
Todo