Implement search

[thedivtagguy]

This is already almost done:
https://github.com/thedivtagguy/site/blob/master/src/lib/components/Primary/Search.svelte

What this does:

1. Flatterns object so full-text search is available
2. Fetches title for result

What this needs:

Full text search shows up a lot of partial matches. You want to threshold things a little in that case. You opened an issue about it too:
metonym/svelte-typeahead#83

When resolved, implement it