fix: svg demo

Author: hperrin

packages/site/src/routes/demo/common/_Svg.svelte

@@ -7,6 +7,7 @@
     xmlns="http://www.w3.org/2000/svg"
     viewBox="0 0 300 300"
   >
+    {@html `
     <title>SVG Logo</title>
     <desc
       >Designed for the SVG Logo Contest in 2006 by Harvey Rayner, and adopted
@@ -95,6 +96,7 @@
       xmlns:xlink="http://www.w3.org/1999/xlink"
     />
     <use xlink:href="#SVG" xmlns:xlink="http://www.w3.org/1999/xlink" />
+    `}
   </SmuiElement>
 </div>