fix(aura): drive blur via @media instead of broken argument

styles/base/global.css

@@ -110,10 +110,12 @@ main#maincontent {
 	pointer-events: none;
 	transform: translateZ(0);
 	will-change: transform;
+	filter: blur(105px);
 }
 
-.aura-layer-2--mobile { filter: blur(105px); }
-.aura-layer-2--desktop { filter: blur(151px); }
+@media (min-width: 1024px) {
+	.aura-layer-2 { filter: blur(151px); }
+}
 
 .aura-grain {
 	position: absolute;