Implement Flask-Breadcrumbs

app/__init__.py

app/auth/routes.py

app/contributions/__init__.py

app/contributions/forms.py

app/contributions/json_routes.py

app/contributions/routes.py

app/contributions/spacy_nlp_pipeline_models/__init__.py

app/contributions/spacy_nlp_pipeline_models/forms.py

app/contributions/spacy_nlp_pipeline_models/json_routes.py

app/contributions/spacy_nlp_pipeline_models/routes.py

app/contributions/tesseract_ocr_pipeline_models/__init__.py

app/contributions/tesseract_ocr_pipeline_models/forms.py

app/contributions/tesseract_ocr_pipeline_models/routes.py

app/corpora/routes.py

app/main/routes.py

app/services/routes.py

app/templates/_navbar.html.j2

app/templates/_sidenav.html.j2

app/templates/admin/_breadcrumbs.html.j2

app/templates/admin/edit_user.html.j2