add prepare script to add sideEffects: false to heroicons

packages/docs/scripts/fix-heroicons.js

@@ -0,0 +1,15 @@
+// heroicons doesn't have "sideEffects": false in it's package json,
+// which causes esbuild to bundle in 460+ imports of react for some reason,
+// which causes memory issues
+import glob from "fast-glob"
+import { readFile, writeFile } from "node:fs/promises"
+
+const files = await glob("node_modules/@heroicons/react/**/*.json", {
+  absolute: true,
+})
+
+for (const file of files) {
+  const data = JSON.parse(await readFile(file, "utf8"))
+  data.sideEffects = false
+  await writeFile(file, JSON.stringify(data, undefined, 2))
+}