update frontend

__pycache__/database_api.cpython-37.pyc

crisis_events.db

crisis_events_database_metadata.json

database_api.py

...base_implementation/__pycache__/sqlite_api.cpython-37.pyc

database_implementation/sqlite_api.py

flask_backend.py

frontend/crisis-events-text-summarization-frontend/README.md

...isis-events-text-summarization-frontend/package-lock.json

...nd/crisis-events-text-summarization-frontend/package.json

...tend/crisis-events-text-summarization-frontend/src/App.js

...ents-text-summarization-frontend/src/collection_editor.js

...events-text-summarization-frontend/src/collection_list.js

...s-events-text-summarization-frontend/src/database_util.js