Merge branch '125-tutor-avaibilities' into 'dev'

.DS_Store

...rsions/37f4cc82f93e_update_survey_response_with_other_.py

...rsions/9dfb49268c5f_add_my_slots_column_to_users_table.py

...ic/versions/ce5a922c7fc4_add_new_columns_to_user_table.py

backend/app/models.py

backend/app/schemas.py

backend/languagelab.sqbpro

frontend/src/lang/en.json

frontend/src/lang/fr.json

frontend/src/lang/nl.json

frontend/src/lib/types/user.ts

frontend/src/routes/+page.svelte

frontend/src/routes/register/[[studyId]]/+page.server.ts

frontend/src/routes/register/[[studyId]]/+page.svelte

frontend/src/routes/register/[[studyId]]/+page.ts

frontend/src/routes/tutor/+layout.server.ts

frontend/src/routes/tutor/register/+page.server.ts

frontend/src/routes/tutor/register/+page.svelte