Implement ng performance upgrades

[blubberbo]

Following the guide here: https://itnext.io/improve-your-angular-apps-performance-66032f63dc09, implement various performance increases in the angular app

[blubberbo]

implemented lazy loading for the following components:

• about
• play
• release-notes
• riot-games-disclaimer

[blubberbo]

put the --es5-browser-support=false flag in the angular.json file

[blubberbo]

used providedIn: 'root' for the following services:

• notification.service
• lol-pickem.service
• error.service

[blubberbo]

still need to implement <ng-container> instead of div wrappers where possible. can use :host css to apply any container styles

[blubberbo]

still need to implement <ng-container> instead of div wrappers where possible. can use :host css to apply any container styles

This has also been done