Update Dockerfile

Release version 2.3.4

Updates after version 2.3.3:

- Update Homepage text (webui)
- For dev instances: show the production instance link using the env variable PRODUCTION_SITE_LINK

 Release version 2.3.3

Updates after version 2.3.2:

- Update Homepage text (webui)
- Show message according to B2SHARE_SITE_FUNCTION env value

Co-authored-by: Harri Hirvonsalo <harri.hirvonsalo@csc.fi>

Release version 2.3.2

Updates after version 2.3.1:

- Update links in Help page
- Links will point to updated B2SHARE documentation

Co-authored-by: Harri Hirvonsalo <harri.hirvonsalo@csc.fi>

Release version 2.3.1

Updates after version 2.3.0:

- Add User-Agent Header to Request Object (BUGFIX)
- Fix PATCH record for TypeError when missing doi
- Blur community description when it's too long
- Load fonts locally instead of using Google API
- Fix the parsing of ePIC PIDs

Co-authored-by: Harri Hirvonsalo <harri.hirvonsalo@csc.fi>

Release 2.3.0

Changes after 2.2.5:
* Configloader
* Statistics UI
* Mobile optimizations
* Updated dockerfile

Minor release. Changes after version 2.2.4:

- Introduce Signposting feature
- Add statistics collection backend

Release version 2.2.4

Updates after version 2.2.3:

- Introduce social media share feature
- Replace deprecated B2handle with pyhandle library
- Update B2ACCESS integration
- Fix citation rendering for safari
- Update root schema version

Co-authored-by: Johannes Lares <johannes.lares@csc.fi>
Co-authored-by: Joni Tahvanainen <joni.tahvanainen@csc.fi>
Co-authored-by: Petri Laihonen <petri.laihonen@csc.fi>
Co-authored-by: Harri Hirvonsalo <harri.hirvonsalo@csc.fi>

Fix env variables checks

* update configuration file

Fix env variables checks

* update configuration file