Add format script to package.json and format with prettier.

src/client/shared.ts

@@ -1,12 +1,12 @@
 export const {
-	util: { isScramjetFile, BareClient },
-	url: { encodeUrl, decodeUrl },
-	rewrite: {
-		rewriteCss,
-		rewriteHtml,
-		rewriteSrcset,
-		rewriteJs,
-		rewriteHeaders,
-		rewriteWorkers,
-	},
+  util: { isScramjetFile, BareClient },
+  url: { encodeUrl, decodeUrl },
+  rewrite: {
+    rewriteCss,
+    rewriteHtml,
+    rewriteSrcset,
+    rewriteJs,
+    rewriteHeaders,
+    rewriteWorkers,
+  },
 } = self.$scramjet.shared;