channellist: preset favorite bouquets when adding channels

when adding channels from the channellist context menu, the
useful targets are the favorites bouquets, so pre-select them

src/gui/channellist.cpp

@@ -400,6 +400,10 @@ int CChannelList::doChannelMenu(void)
 
 			break;
 		case 2: // add to
+			/* default to favorites list, it makes no sense to add to autogenerated bouquets */
+			if (CNeutrinoApp::getInstance()->GetChannelMode() != LIST_MODE_FAV)
+				CNeutrinoApp::getInstance()->SetChannelMode(LIST_MODE_FAV);
+
 			do {
 				bouquet_id = bouquetList->exec(false);
 			} while(bouquet_id == -3);