Merge branch 'cleanup_ui' into 'django3_migration'

beat/web/ui/forms.py

beat/web/ui/static/ui/images/icons/svg/attribution.html

beat/web/ui/static/ui/images/icons/svg/beat-gray.svg

beat/web/ui/static/ui/images/icons/svg/beat.svg

beat/web/ui/static/ui/images/icons/svg/filled/add.svg

beat/web/ui/static/ui/images/icons/svg/filled/analyzer.svg

beat/web/ui/static/ui/images/icons/svg/filled/arrow-down.svg

beat/web/ui/static/ui/images/icons/svg/filled/arrow-left.svg

.../web/ui/static/ui/images/icons/svg/filled/arrow-right.svg

beat/web/ui/static/ui/images/icons/svg/filled/arrow-up.svg

beat/web/ui/static/ui/images/icons/svg/filled/block.svg

.../static/ui/images/icons/svg/filled/certificate-locked.svg

.../web/ui/static/ui/images/icons/svg/filled/certificate.svg

beat/web/ui/static/ui/images/icons/svg/filled/close.svg

beat/web/ui/static/ui/images/icons/svg/filled/database.svg

beat/web/ui/static/ui/images/icons/svg/filled/dataset.svg

...i/static/ui/images/icons/svg/filled/double-arrow-down.svg

...i/static/ui/images/icons/svg/filled/double-arrow-left.svg

.../static/ui/images/icons/svg/filled/double-arrow-right.svg

.../ui/static/ui/images/icons/svg/filled/double-arrow-up.svg