Refactor: Pause and filteredList.setPredicate for closeSearchBar

Author: KSSJW

HMCL/src/main/java/org/jackhuang/hmcl/ui/main/ThemePackManagementPage.java

@@ -558,8 +558,11 @@ private void initializeToolbar(ThemePackManagementPage skinnable, ComponentList
 
             JFXButton closeSearchBar = createToolbarButton2(null, SVG.CLOSE, () -> {
                 changeToolbar(toolbarNormal);
+
                 searchField.clear();
+                pause.stop();
 
+                skinnable.filteredList.setPredicate(null);
                 isSearching.set(false);
             });
             onEscPressed(searchField, closeSearchBar::fire);