feat: Adding delete and see friends

spec.json

src/api/index.ts

src/api/models/Badge.ts

src/api/models/BadgeUser.ts

src/api/models/BadgeUserId.ts

src/api/models/Budget.ts

src/api/models/Configuration.ts

src/api/models/GrantedAuthority.ts

src/api/models/Point.ts

src/api/models/Streak.ts

src/api/models/User.ts

src/api/services/FriendService.ts

src/api/services/UserService.ts

src/views/User/UserFriendsView.vue