Fix hover state of <h3> when no carpool is found

[dryan]

Taking part of #467 and making it it's own issue.

When no results are found for a search, the fallback markup still uses the .result class. This makes the title in that div change color on hover like a link.

Two approaches to fixing this:

1. Edit https://github.com/RagtagOpen/nomad/blob/master/app/static/js/find.js#L287 so that it doesn't use the .result class and give it a new class that has the same padding as .result.

2. Change the CSS at https://github.com/RagtagOpen/nomad/blob/master/app/static/css/styles.css#L363 so that the styles that currently apply to <h3>s inside .result apply to <a> tags within those <h3>s instead.

Number two is the better choice in my opinion.