Bump electron from 6.0.12 to 7.0.0

Bumps [electron](https://github.com/electron/electron) from 6.0.12 to 7.0.0.
- [Release notes](https://github.com/electron/electron/releases)
- [Commits](https://github.com/electron/electron/compare/v6.0.12...v7.0.0)

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

package.json

@@ -13,7 +13,7 @@
     "core-js": "^3.3.3",
     "cross-env": "6.0.3",
     "css-loader": "3.2.0",
-    "electron": "^6.0.12",
+    "electron": "^7.0.0",
     "electron-builder": "^21.2.0",
     "electron-installer-snap": "^4.0.0",
     "electron-notarize": "^0.1.1",