build: run tsc and vite build sequentially

it seems possible that on CI the backgrounded  command is not
finishing and that's why the d.ts files are not included in the release?
Ether way, it doesn't seem necessary to background the task

Author: Charlie Stuart

package.json

@@ -27,7 +27,7 @@
   },
   "scripts": {
     "prepare": "pnpm run build",
-    "build": "tsc -p tsconfig.esm.json & npx vite build",
+    "build": "tsc --listEmittedFiles -p tsconfig.esm.json && npx vite build",
     "test": "vitest run",
     "test-watch": "vitest",
     "preversion": "pnpm run build",