[#130] QA: Fix Code Smells Detected by Sonarqube (Part 2)

app/management/commands/generatetraffic.py

app/management/commands/removetraffic.py

app/management/commands/utils.py

app/migrations/0003_auto_20200509_2108.py

app/migrations/0025_review.py

app/models.py

app/services.py

app/templates/app/base_admin.html

app/templates/app/detail_materi.html

app/templates/app/katalog_materi.html

app/utils/fileManagementUtil.py

app/views.py

docker-compose.yml

formating.sh

register/forms.py

register/templates/index_admin.html

register/templates/index_umum.html