Overhaul Config Search Settings in line with General Configuration.

Improve text wording on many UI elements under Search Settings.
Improve reduce over use of capitals.
Change prevent specific rTorrent guidance from showing everywhere.
Fix duplicate html IDs used on the Torrent Search tab, there can be only ONE ID!
Improve streamline UI layout, mark-up, and javascript, remove unused DOM setters.
Clean up text, correct quotations, use spaces for code lines, tabs for html.