Migrate to electron-vite and electron-builder

- Switch from deprecated Vue CLI plugin to `electron-vite` (see
  nklayman/vue-cli-plugin-electron-builder#1982)
- Update main/preload scripts to use `index.cjs` filenames to support
  `"type": "module"`, resolving crash issue (#233). This crash was
  related to Electron not supporting ESM (see electron/asar#249,
  electron/electron#21457).
- This commit completes migration to Vite from Vue CLI (#230).

Structure changes:

- Introduce separate folders for Electron's main and preload processes.
- Move TypeHelpers to `src/` to mark tit as accessible by the rest of
  the code.

Config changes:

- Make `vite.config.ts` reusable by Electron configuration.
- On electron-builder, use `--publish` flag instead of `-p` for clarity.

Tests:

- Add log for preload script loading verification.
- Implement runtime environment sanity checks.
- Enhance logging in `check-desktop-runtime-errors`.

src/presentation/electron/preload/index.ts

@@ -0,0 +1,11 @@
+// This preload script serves as a placeholder to securely expose Electron APIs to the application.
+// As of now, the application does not utilize any specific Electron APIs through this script.
+import log from 'electron-log';
+import { validateRuntimeSanity } from '@/infrastructure/RuntimeSanity/SanityChecks';
+
+validateRuntimeSanity({
+  validateMetadata: true,
+});
+
+// Do not remove [PRELOAD_INIT]; it's a marker used in tests.
+log.info('[PRELOAD_INIT] Preload script successfully initialized and executed.');