Bump electron from 7.1.1 to 7.2.4 (#40)

Bumps [electron](https://github.com/electron/electron) from 7.1.1 to 7.2.4.
- [Release notes](https://github.com/electron/electron/releases)
- [Changelog](https://github.com/electron/electron/blob/master/docs/breaking-changes.md)
- [Commits](electron/electron@v7.1.1...v7.2.4)

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

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

Author: dependabot[bot]

package-lock.json

@@ -100,7 +100,7 @@
   },
   "devDependencies": {
     "@ionic/app-scripts": "^3.2.4",
-    "electron": "^7.1.1",
+    "electron": "^7.2.4",
     "electron-builder": "^19.50.0",
     "mkdirp": "^0.5.1",
     "typescript": "2.3.4"