Build search page

[Alex-Cannon]

Close #12

I built the search page. Below are steps to test the page:

1. Navigate to the search page
2. Type a query like "food" or "food bank"
3. Click "search"
4. It is expected to see a list of results with "food" in title, description, type, etc.
5. Click an org
6. You are redirected to /category/basic-needs/food/:id?backLink=/search?s=food
7. When you click the back arrow, you are redirected to /search?s=food INSTEAD of the category page.

The search page does this:

1. Pulls ALL sheets LOCALLY
2. Searches through relevant fields for the keywords provided by user. For example, when "food" is provided, returns orgs that have food in title, description, type, etc.
3. Display

[Alex-Cannon]

Moved from fork to base repo. Although, as I was doing this, Travis did check this branch. Strange, hu?