Icons added for entities and sorting
Person and group generic entitiy templates
Groups filtering server side and infinite scroll

Partially implements #444
Server side sorting added

Still missing a user interface to select what to sort by.
Sorting UI implemented on client
Refactored entity listings
Adding mistakenly moved results
Default sorting by activity in groups. Fixes #437

Still needs to have real last activity implemented. Currently updatedAt
is used.
The whole entity listing links to entity view
Universal editing of entity names in listings
Unified section style

Removed .simple divs, which causes big diffs due to indentation change.
Also started publications view and fixed some naming issues (notfound
-> notFound)
Catalog of publications. Fixes #434

Also fixes #475
Support for reactive sorting. Fixes #477
Checking more edge cases.
Merge branch 'development' into index-views
Pull request feedback
Pull request refactoring
Catalog of annotations. #432

Annotation catalog item is not designed yet and will be done in a
future commit.
Pull request feedback.
Catalog of highlights. Fixes #433

Like before, design for the item itself will come in the end.