Precompress wasm files (#3790)

* Precompress wasm files

When enabling the `precompress` option, WebAssembly files currently aren't compressed.
In my case however, compression brings me down from 4 MB to 1.5 MB, which seems to be in line with [what can be observed in the wild](https://almanac.httparchive.org/en/2021/webassembly#can-we-improve-compression).

* add changelog

* add wasm compression to adapter-node

Author: stephtr

.changeset/purple-dragons-work.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-static': patch
+---
+
+`precompress` option also compress wasm files

packages/adapter-node/index.js

@@ -78,7 +78,7 @@ async function compress(directory) {
 		return;
 	}
 
-	const files = await glob('**/*.{html,js,json,css,svg,xml}', {
+	const files = await glob('**/*.{html,js,json,css,svg,xml,wasm}', {
 		cwd: directory,
 		dot: true,
 		absolute: true,

packages/adapter-static/index.js

@@ -50,7 +50,7 @@ export default function ({ pages = 'build', assets = pages, fallback, precompres
  * @param {string} directory
  */
 async function compress(directory) {
-	const files = await glob('**/*.{html,js,json,css,svg,xml}', {
+	const files = await glob('**/*.{html,js,json,css,svg,xml,wasm}', {
 		cwd: directory,
 		dot: true,
 		absolute: true,