Remove redundant files and code from the repo #51
Description
There are various redundant or unnecessary files in the repo, some of which have blueprints in the flask app, others of which are orphans. Unnecessary html files include the login system that was decided to be unnecessay, the docpage that never got used, glossary and infopages 2 & 3.
If the login system is removed fully, the db file is also not needed any more.
There are also unnecessary blocks of code in the repo, including sections of the dash app that are not actually used or needed, and blueprints in the flask app that are not linked to.