[enhancement] When searching for a term, allow to filter by page type

[jakeweidokal]

I would like to be able to filter by page type when searching a particular term.

For example:
When searching for "game", I want to filter to /ideas pages to only see people with an idea to build a game
When searching for "bourbon", I want to filter to /about pages to find others who list that as an interest on their about page