fix(canvas): contain-layout to avoid fixed positioned elements leaking out of the canvas

Author: ruchamahabal

frontend/src/components/StudioCanvas.vue

@@ -38,7 +38,7 @@
 				</div>
 			</div>
 			<div
-				class="canvas relative flex h-full rounded-md bg-white shadow-2xl"
+				class="canvas relative flex h-full rounded-md bg-white shadow-2xl contain-layout"
 				:style="{
 					...canvasStyles,
 					background: canvasProps.background,