Add: Vite Electron Builder template

From https://github.com/cawa-93/vite-electron-builder

webapp/packages/preload/vite.config.js

@@ -0,0 +1,51 @@
+import {chrome} from '../../electron-vendors.config.json';
+import {join} from 'path';
+import {builtinModules} from 'module';
+
+const PACKAGE_ROOT = __dirname;
+
+/**
+ * @type {import('vite').UserConfig}
+ * @see https://vitejs.dev/config/
+ */
+const config = {
+  mode: process.env.MODE,
+  root: PACKAGE_ROOT,
+  envDir: process.cwd(),
+  resolve: {
+    alias: {
+      '/@/': join(PACKAGE_ROOT, 'src') + '/',
+    },
+  },
+  build: {
+    sourcemap: 'inline',
+    target: `chrome${chrome}`,
+    outDir: 'dist',
+    assetsDir: '.',
+    minify: process.env.MODE === 'development' ? false : 'terser',
+    terserOptions: {
+      ecma: 2020,
+      compress: {
+        passes: 2,
+      },
+      safari10: false,
+    },
+    lib: {
+      entry: 'src/index.ts',
+      formats: ['cjs'],
+    },
+    rollupOptions: {
+      external: [
+        'electron',
+        ...builtinModules,
+      ],
+      output: {
+        entryFileNames: '[name].cjs',
+      },
+    },
+    emptyOutDir: true,
+    brotliSize: false,
+  },
+};
+
+export default config;