feat: add view for unread entries from all feeds
misc: update models
bugfix: set date if cant parse
bugfix: forgot about new css file
web_interface: show feeds from category
feat: add additional css template block
bugfix: use correct macro for login and register templates
web_interface: add buttons redirecting to show all and unread
web_interface: move pagination to macro
web_interface: remove unneeded div tags
misc: rename macros
bugfix: return 400 http error code
feat: add feed category view
web_interace: add unread entries view
misc: change default per page value
misc: change var name inside template
web_interface: change padding
feat: add pagination to default web interface
simplify sql joins code in sqlalchemy