added serveral improvments e.g language, latest versions, login

package-lock.json

package-lock.json.bak

package.json

package.json.bak

src/app/admin/admin.component.html

src/app/admin/admin.component.html.bak

src/app/app.component.spec.ts

src/app/app.component.spec.ts.bak

src/app/app.component.ts

src/app/international/international.component.html

src/app/international/international.component.html.bak

src/app/international/international.component.spec.ts

src/app/international/international.component.spec.ts.bak

src/app/login/login.component.html

src/app/login/login.component.html.bak

src/app/navigation/navigation.component.html

src/app/navigation/navigation.component.html.bak

src/app/navigation/navigation.component.spec.ts

src/app/navigation/navigation.component.spec.ts.bak

src/app/rooms/rooms.component.html