OO-2592 add space for forum message move menu

src/main/webapp/static/themes/light/modules/_forum.scss

@@ -28,6 +28,9 @@
 }
 
 .o_forum {
+	/* add space for move-thread menu, otherwise menu cut (layer problem of pulldown */
+	padding-bottom: 50px;
+	
 	.o_mark, .o_ep_collect {
 		float: right;
 		position: relative;

src/main/webapp/static/themes/light/modules/_highscore.scss

@@ -5,7 +5,7 @@
 		text-align: center;
 		h2 {
 			@if $o-hs-position-title-color == gradient {
-				background: linear-gradient(330deg, #e05252 0%, #99e052 25%, #52e0e0 50%, #9952e0 75%, #e05252 100%);
+				-webkit-background: linear-gradient(330deg, #e05252 0%, #99e052 25%, #52e0e0 50%, #9952e0 75%, #e05252 100%);
 				-webkit-background-clip: text;
 				-webkit-text-fill-color: transparent;
 				display: inline;