KERNEL-9928 重构水印加载

1.适配一下面板

designer-base/src/main/java/com/fr/design/report/WatermarkSettingPane.java

@@ -42,13 +42,13 @@ public class WatermarkSettingPane extends AbstractTemplateServerSettingPane {
     }
 
     public void populate(WatermarkAttr watermark) {
-        if (!watermark.isValid()) {
+        if (watermark.getWaterMarkProvider().equals("TEMPLATE")) {
+            chooseComboBox.setSelectedIndex(SINGLE_SET);
+            watermarkPane.populate(watermark);
+        } else {
             chooseComboBox.setSelectedIndex(SERVER_SET);
             populateServerSettings();
-            return;
         }
-        chooseComboBox.setSelectedIndex(SINGLE_SET);
-        watermarkPane.populate(watermark);
     }