fade in product list table-row suggestions, so it's less jarring

assets/js/admin/marketplace-suggestions.js

@@ -381,15 +381,19 @@
 						var rows = $( this ).children();
 						var minRow = 3;
 
+						$( content ).hide();
+
 						if ( rows.length <= minRow ) {
 							// if small number of rows, append at end
 							$( this ).append( content );
 						}
 						else {
-							// for more rows, append
+							// for more rows, insert
 							$( rows[ minRow - 1 ] ).after( content );
 						}
 
+						$( content ).fadeIn();
+
 						usedSuggestionsContexts.push( context );
 
 						window.wcTracks.recordEvent( 'marketplace_suggestion_displayed', {