ctucx.git: oeffisearch

prevent scrollbar on canvas page

diff --git a/client/js/canvas.js b/client/js/canvas.js
@@ -273,7 +273,7 @@ const resizeHandler = () => {
 	canvas.width = window.innerWidth * dpr;
 	canvas.height = (window.innerHeight - rect.height) * dpr;
 	canvas.style.width = `${window.innerWidth}px`;
-	canvas.style.height = `${window.innerHeight - rect.height - 1}px`;
+	canvas.style.height = `${window.innerHeight - rect.height - 4}px`;
 
 	ctx.restore();
 	ctx.save();