Added PWA support

public/icons/pwa-source.svg

@@ -0,0 +1,11 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
+	<rect width="512" height="512" fill="#08090b" />
+	<path
+		d="M96 352 174 176l78 176h44l70-138 64 138"
+		fill="none"
+		stroke="#00db81"
+		stroke-linecap="round"
+		stroke-linejoin="round"
+		stroke-width="34"
+	/>
+</svg>