infinite scroller improvements

[JackBellinger]

• [x] Parse blog metadata into db
• [ ] move pagination, search term, and selected tags into url query params.
• [ ] add featured articles to db schema and download them first
• [x] query tags on page load to show all available
• [ ] virtualized list
• [ ] add documentation and diagram
• [ ] Make sure the api is abstract to handle any data and list display component
• [ ] Fine tune when to query for more items
• [ ] Publish component as separate repo
• [ ] use regex library with search patterns like "", ||, not/!, etc
• [ ] Add title search autocompletion?