## Description
Let `dev` and `start` scripts run `install-electron` before
`electron-vite`.
Electron 42 removed the `postinstall` script. The `electron` package now
downloads its binary on its `bin` entry's first run. `electron-vite`
reads `node_modules/electron/path.txt` directly, so it never starts that
download. A fresh install therefore fails with:
```
error during start dev server and electron app:
Error: Electron uninstall
at getElectronPath (...)
...
```
`install-electron` runs the same code as the removed `postinstall`
script. It returns immediately when the binary is already present.
Makito