Merge branch 'feat-updates' of https://gitlab.doc.ic.ac.uk/edtech/project-allocator into feat-updates

- /.gitlab-ci.yml
- /nginx/Dockerfile

Merge branch 'feat-updates' of https://gitlab.doc.ic.ac.uk/edtech/project-allocator into feat-updates

Add marking support

See merge request !20

Fix: set default deadlines in the future to prevent issues related to missing environment variables.

feat: for each student who shortlisted a project, show what rank that project has in their shortlisting