feat(immersive): replace Tunnel visualizer icon with cube SVG

static/cube-svgrepo-com.svg

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Uploaded to: SVG Repo, www.svgrepo.com, Generator: SVG Repo Mixer Tools -->
+<svg fill="#000000" version="1.1" id="Capa_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" 
+	 viewBox="0 0 490 490" xml:space="preserve">
+<g>
+	<g>
+		<g>
+			<polygon points="163.3,177.3 0,13.6 0,307.2 163.3,307.2 			"/>
+			<polygon points="326.7,163.3 476.4,163.3 326.7,13.6 			"/>
+			<polygon points="326.7,182.8 326.7,312.7 490,476.4 490,182.8 			"/>
+			<rect x="182.8" y="182.8" width="124.1" height="124.1"/>
+			<polygon points="312.7,326.7 182.8,326.7 182.8,490 476.4,490 			"/>
+			<polygon points="163.3,326.7 13.6,326.7 163.3,476.4 			"/>
+			<polygon points="177.3,163.3 307.2,163.3 307.2,0 13.6,0 			"/>
+		</g>
+	</g>
+</g>
+</svg>