Bumps [electron](https://github.com/electron/electron) from 4.0.4 to 4.0.5.
- [Release notes](https://github.com/electron/electron/releases)
- [Commits](https://github.com/electron/electron/compare/v4.0.4...v4.0.5)
Signed-off-by: Ndependabot[bot] <support@dependabot.com>