Bump electron from 7.2.4 to 9.4.0 in /web (#628)

Bumps [electron](https://github.com/electron/electron) from 7.2.4 to 9.4.0.
- [Release notes](https://github.com/electron/electron/releases)
- [Changelog](https://github.com/electron/electron/blob/master/docs/breaking-changes.md)
- [Commits](https://github.com/electron/electron/compare/v7.2.4...v9.4.0)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

web/package.json

@@ -80,7 +80,7 @@
     "core-js": "^2.5.7",
     "cross-env": "^5.2.0",
     "dotenv": "^6.1.0",
-    "electron": "^7.2.4",
+    "electron": "^9.4.0",
     "electron-builder": "^20.34.0",
     "electron-reload": "^1.5.0",
     "fs-extra": "^7.0.1",