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:angular:20161101

Latest report for feedhenry-raincatcher/raincatcher-demo-mobile:
https://snyk.io/test/github/feedhenry-raincatcher/raincatcher-demo-mobile
feedhenry-raincatcher/raincatcher-demo-mobile,feedhenry-raincatcher/raincatcher-demo-mobile