refactored use-case update_user_badges
renamed uc show_user_badges to find_user_badges and refactored it
renamed uc show_badges to find_badges and refactored it
renamed show_champion_tip to find_champion_tip and refactored it
renamed uc show_all_phases to find_all_phases and refactored it
renamed uc show_all_groups_of_phase to find_all_groups_of_phase and refactored it
refactored uc UpdateChampionTip