refactor for semble and margin interop / multi filtering (#27)
* enable multiple bookmark sources
* cleanup imports and return collections/tags from datasource interface
* render unified filters
* simplify/consolidate filters, multi filter select
* track item collecitons in view
* render collection/count on card
* refactor render into view
* fix all filter
* refactor card detial rendering
* add edit button to detial modal
* add icons
* add icons
* better styling of filters
* fix tag filtering
* unify create collection modal
* add source icon to filter menus
* add icon to chips, fix bookmark colleciton filtering
* cleanup
* bump version
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