no round for cursor movement

frontend/src/lib/PaintCanvas.svelte

@@ -114,8 +114,8 @@
 	// Update cursor presence to current pointer location
 	function handlePointerMove(event: PointerEvent) {
 		event.preventDefault();
-		const x = round($currZoomTransform.invertX(event.clientX));
-		const y = round($currZoomTransform.invertY(event.clientY));
+		const x = $currZoomTransform.invertX(event.clientX);
+		const y = $currZoomTransform.invertY(event.clientY);
 
 		myPresence.update({
 			cursor: {

frontend/src/lib/PaintFrame.svelte

@@ -39,8 +39,8 @@
 			};
 			myPresence.update({
 				cursor: {
-					x: x + 256,
-					y: y + 256
+					x: transform.invertX(event.x),
+					y: transform.invertY(event.y)
 				}
 			});
 		}
@@ -59,14 +59,10 @@
 			});
 		}
 		function handlePointerMove(event: PointerEvent) {
-			event.preventDefault();
-			const x = round(transform.invertX(event.clientX));
-			const y = round(transform.invertY(event.clientY));
-
 			myPresence.update({
 				cursor: {
-					x,
-					y
+					x: transform.invertX(event.clientX),
+					y: transform.invertY(event.clientY)
 				}
 			});
 		}