fix: package.json to reduce vulnerabilities
fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/npm:electron:20180307

Latest report for dkundel/hybrid-appocalypse:
https://snyk.io/test/github/dkundel/hybrid-appocalypse
dkundel/hybrid-appocalypse,dkundel/hybrid-appocalypse