fix：修复全屏时formrender下拉框等内容没有挂载到画布上

Author: 昔梦

docs/xflow/demo/custom-flow/fullCase/components/customWidget.tsx

@@ -103,6 +103,9 @@ const CustomWidget = forwardRef<
         // size="small"
         removeHiddenData={false}
         widgets={{ ReadOnlyPanel }}
+        configProvider={{
+          getPopupContainer: triggerNode => triggerNode.parentElement
+        }}
       />
     </div>
   );

docs/xflow/demo/custom-flow/fullCase/components/secondTagWidget.tsx

@@ -121,6 +121,9 @@ const secondTagWidget = forwardRef<
         }}
         // size="small"
         widgets={{ ReadOnlyPanel }}
+        configProvider={{  // 全屏时挂载到父节点
+          getPopupContainer: triggerNode => triggerNode.parentElement
+        }}
       />
     </div>
   );

packages/x-flow/src/components/NodeEditor/index.tsx

@@ -164,6 +164,9 @@ const NodeEditor: FC<INodeEditorProps> = forwardRef((props, ref: any) => {
           const initialValues = form.getValues();
           handleNodeValueChange(initialValues);
         }}
+        configProvider={{
+          getPopupContainer: triggerNode => triggerNode.parentElement
+        }}
       />
     );
   } else if (
@@ -178,6 +181,9 @@ const NodeEditor: FC<INodeEditorProps> = forwardRef((props, ref: any) => {
         watch={watch}
         size={'small'}
         readOnly={readOnly}
+        configProvider={{
+          getPopupContainer: triggerNode => triggerNode.parentElement
+        }}
       />
     );
   } else if (CustomSettingWidget) {