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

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-ANGULARCORE-1070902
marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo,marcusasplund/ionic2-camera-demo