Merge branch 'dev' into 'main'

backend/alembic.ini

...ions/fe09c6f768cd_add_code_column_to_test_typing_table.py

backend/app/crud.py

backend/app/main.py

backend/app/models.py

backend/app/schemas.py

frontend/src/lang/fr.json

frontend/src/lib/api/studies.ts

frontend/src/lib/api/tests.ts

frontend/src/lib/api/users.ts

frontend/src/lib/components/tests/typingtest.svelte

frontend/src/routes/tests/[id]/+page.svelte

frontend/src/routes/tests/typing/+page.server.ts

frontend/src/routes/tests/typing/+page.svelte

scripts/surveys/survey_maker.ipynb