Remove prettier from dependencies

I believe it is not required

Author: nikoscham

package.json

@@ -91,7 +91,6 @@
     "rollup-plugin-terser": "^7.0.2",
     "rollup-plugin-typescript2": "^0.36.0",
     "typescript": "^5.8.3",
-    "prettier": "^2.8.8",
     "rollup-plugin-wasm": "^3.0.0",
     "taichi.js": "^0.0.36"
   }