Adjust spacing for rendered search results widget

[ggeisler]

This fix might need to be done in another repo, but since it sounded like the change might have resulted from a Blacklight update, I'm not certain which repo it should be fixed in, so it probably makes sense for a more knowledgeable developer to figure it out.

The rendered search result widget includes two places where the spacing needs adjusting:

• The item title needs to be left-aligned with the left edge of the thumbnail image and metadata
• There needs to be vertical space between the view options buttons and the top of the search results container

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• For the first issue, I believe giving the item title padding-left: 0; will fix it
• For the second issue, adding 1rem margin between the view options buttons and the top of the search results container seems about right

Those changes would result in something like this:

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I suspect the trickiest thing about this is to make those updates in a way that doesn't affect other search result views.