Added css for new empty all filters button

Author: MatthieuLP

css/hf_base.css

@@ -1369,4 +1369,15 @@ li.path-ext-svg a img {
 
 .linkedAlbumPopInContainer .searching {
   margin-top: 10px;
+}
+
+.clear-all {
+  color: #c4c4c4;
+  cursor: not-allowed;
+  font-weight: 600;
+}
+
+.clear-all.clickable {
+  color: #ff7700;
+  cursor: pointer;
 }