ctucx.git: trainsearch

fix canvas indexOffset

diff --git a/src/canvas.js b/src/canvas.js
@@ -338,7 +338,7 @@ const mouseUpHandler = (evt) => {
 		const num = Math.floor((x - canvasState.offsetX + 2 * padding) / rectWidthWithPadding) + canvasState.indexOffset;
 		if (num >= 0) {
 			if (num < canvasState.journeys.length) {
-				const j = canvasState.journeys[num - canvasState.indexOffset];
+				const j = canvasState.journeys[num];
 				go(`/j/db/${j.refreshToken}`);
 			} else {
 				moreJourneys(canvasState.slug, 'later');