Bump electron from 8.2.5 to 9.4.0 in /Client

Bumps [electron](https://github.com/electron/electron) from 8.2.5 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](electron/electron@v8.2.5...v9.4.0)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Client/package-lock.json

@@ -9,7 +9,7 @@
   "author": "Clement L.",
   "license": "ISC",
   "devDependencies": {
-    "electron": "^8.2.5"
+    "electron": "^9.4.0"
   },
   "dependencies": {
     "jquery": "^3.5.1",