REPORT-84407 设计面板-单元格元素，国际化显示

【问题原因】UIlabel高度被默认增加3
【改动思路】UIlabel高度减少3
【review建议】无

designer-realize/src/main/java/com/fr/quickeditor/CellQuickEditor.java

@@ -67,6 +67,7 @@ public abstract class CellQuickEditor extends QuickEditor<ElementCasePane> {
     private static final int CONTENT_PANE_WIDTH_GAP = 3;
     private static final int MOUSE_WHEEL_SPEED = 5;
     private static final int SCROLLBAR_WIDTH = 7;
+    private final int HTML_SHIFT_HEIGHT = -3;
     private UILabel cellLabel;
 
     private int maxHeight = 280;
@@ -285,10 +286,11 @@ public abstract class CellQuickEditor extends QuickEditor<ElementCasePane> {
         if (selectedOneCell) {
             columnRowTextField.setPreferredSize(null);
             cellLabel.setPreferredSize(null);
-            multipleLabelTip.setPreferredSize(new Dimension());
+            // 使用UILabel.getPreferredSize时，若文本为html高度被默认增加3
+            multipleLabelTip.setPreferredSize(new Dimension(0, HTML_SHIFT_HEIGHT));
         } else {
-            columnRowTextField.setPreferredSize(new Dimension());
-            cellLabel.setPreferredSize(new Dimension());
+            columnRowTextField.setPreferredSize(new Dimension(0, HTML_SHIFT_HEIGHT));
+            cellLabel.setPreferredSize(new Dimension(0, HTML_SHIFT_HEIGHT));
             multipleLabelTip.setPreferredSize(null);
         }
     }