feat: 808 enabling progressive web app

angular.json

ngsw-config.json

package-lock.json

package.json

src/app/app.component.ts

src/app/app.module.ts

...onals/home-rss-detail/home-rss-detail.presentational.html

src/app/stores/person/app-person.state.ts

src/app/stores/user/app-user.state.ts

src/assets/configurations/environment.devserver.json

src/assets/configurations/environment.dlcmtest.json

src/assets/configurations/environment.sandbox.json

src/assets/configurations/environment.ui.json

src/assets/i18n/de.json

src/assets/i18n/en.json

src/assets/i18n/fr.json

src/assets/icons/icon-128x128.png

src/assets/icons/icon-144x144.png

src/assets/icons/icon-152x152.png

src/assets/icons/icon-192x192.png