cleanup view package and simplify the embed templates

The current View package is a huge clusterfuck, which needs cleaning, documentation and restructuring. While at it the different template classes should get a upgrade, because the current implementation is ugly and not modular for the future

Start by locating the View package and the embed template classes, then map their responsibilities and current relationships. The issue provides no named files or tests; done would mean an agreed, documented restructuring with simpler, more modular template classes.

Written by the indexing model from the issue text.