fix(build): strip UTF-8 BOM from package.json/tauri.conf.json (broke vite type:module + vitefu JSON.parse)

package.json

@@ -1,4 +1,4 @@
-{
+{
   "name": "whispassist",
   "private": true,
   "version": "0.1.4",

src-tauri/tauri.conf.json

@@ -1,4 +1,4 @@
-{
+{
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "WhispAssist",
   "version": "0.1.4",