fix: 修复版本设置页面滚动条总是显示的问题 (#5379)

Fix 5377

Author: MinecraftYJQ

HMCL/src/main/java/org/jackhuang/hmcl/ui/versions/VersionSettingsPage.java

@@ -114,7 +114,7 @@ public VersionSettingsPage(boolean globalSetting) {
         ScrollPane scrollPane = new ScrollPane();
         scrollPane.setFitToHeight(true);
         scrollPane.setFitToWidth(true);
-        scrollPane.setVbarPolicy(ScrollPane.ScrollBarPolicy.ALWAYS);
+        scrollPane.setVbarPolicy(ScrollPane.ScrollBarPolicy.AS_NEEDED);
         getChildren().setAll(scrollPane);
 
         rootPane = new VBox();