Improve copy table styling in search results page

[Dan Scott]

The current copy tables in search results are undifferentiated from surrounding text; even the headers have the same font and background color.

Please merge user/dbs/copy_table_style in working for some instant improvements. Additional space above and below, and bold font table headings with light grey background text.

[Ben Shum (bshum)]

Seems much better, though the grey background may need some tweaking by folks pickier with colors.

Signed off at user/bshum/copy_table_style
Link: http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/bshum/copy_table_style

[Dan Scott (denials)]

Thanks, Ben. I've pushed your branch to master.

As for the colour for the background, it's the same background colour used on the result details page, so at least there's some consistency for the folks pickier with colours :)