Current User flow of the search bar

1. User hovers over categories.
2. User clicks on item in category.
3. Item is added as a tag to the query and updates the search results.
4. User can remove the tag in the query by selecting the `x` in the tag.
### Problems with this approach
1. Scale: having 10+ locations or users causes the drop downs to get very big and unusable.
2. No type ahead: currently a user cannot type into the search bar and have a name, location, or skill populate.
3. A user may want to type in lieu of selecting from the drop down; it's not intuitive that you should not type.
### Suggestions
1. Having no drop downs and all location/skill/user possibilities in one big search drop down. This allows for the type ahead but the downside is it collapses all of the categories.
2. Having three separate tag areas for each category so all can have earch drop down functionality. This allows for search functionality in all categories but the downside is you have three separate search boxes contributing to one coherent search instead of one coherent search box.