chore(deps-dev): bump electron from 40.1.0 to 40.8.4

Bumps [electron](https://github.com/electron/electron) from 40.1.0 to 40.8.4.
- [Release notes](https://github.com/electron/electron/releases)
- [Commits](electron/electron@v40.1.0...v40.8.4)

---
updated-dependencies:
- dependency-name: electron
  dependency-version: 40.8.4
  dependency-type: direct:development
...

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

Author: dependabot[bot]

e2e/package.json

@@ -14,6 +14,6 @@
   },
   "devDependencies": {
     "@playwright/test": "^1.50.0",
-    "electron": "^40.1.0"
+    "electron": "^40.8.4"
   }
 }

electron-app/package.json

@@ -46,7 +46,7 @@
   "devDependencies": {
     "@vitest/coverage-v8": "^4.0.18",
     "asar": "^3.2.0",
-    "electron": "^40.1.0",
+    "electron": "^40.8.4",
     "electron-builder": "^26.7.0",
     "vitest": "^4.0.18"
   },