Restyle Owls link a bit in Item Getting Guide

I think it helps a bit to have only the label be dotted-underlined, to
hint that I'm offering help about what that *means*, but clear the way
for the value itself to be more visible and less cluttered.

app/assets/stylesheets/items/sources.sass

@@ -84,14 +84,12 @@
 		a
 			color: inherit
 
-		a[title]
+	.owls-info-link
+		.owls-info-label
 			text-decoration-line: underline
 			text-decoration-style: dotted
 			cursor: help
 
-			&:hover, &:focus
-				text-decoration-style: solid
-
 	/* For wearable items that belong to a specific set that all come together,
 	 * like a Paint Brush. */
 	&[data-group-type="bundle"]

app/views/items/sources.html.haml

@@ -174,9 +174,11 @@
 				= render "item_list_row", item: do
 					- content_for :subtitle, flush: true do
 						- if item.nc_trade_value.present?
-							= link_to "Owls listing: #{item.nc_trade_value.value_text}",
-								"https://www.neopets.com/~owls", target: "_blank",
-								title: 'Owls keeps track of approximate "capsule" values of NC items for trading. Items with similar values can often be traded for one another. This is an estimate, not a rule!'
+							= link_to "https://www.neopets.com/~owls",
+								class: "owls-info-link", target: "_blank",
+								title: 'Owls keeps track of approximate "capsule" values of NC items for trading. Items with similar values can often be traded for one another. This is an estimate, not a rule!' do
+								%span.owls-info-label Owls listing:
+								#{item.nc_trade_value.value_text}
 
 					= button_link_to "NC Trades",
 						item_trades_path(item, type: "offering"),