fix: 修复拒绝、恢复、另存按钮在单分格模式下禁用的问题

- 修改 buttonAvailabilityConfig.ts 中按钮配置逻辑
- 将 singleGridDisabled 从 true 改为 false 启用这些按钮在单分格模式

改动文件：
- src/utils/buttonAvailabilityConfig.ts

src/utils/buttonAvailabilityConfig.ts

@@ -47,15 +47,15 @@ export const getButtonAvailabilityConfig = (action: string): ButtonAvailabilityC
       break;
     case '拒绝':
       config.multiGridDisabled = true;
-      config.singleGridDisabled = true;
+      config.singleGridDisabled = false;
       break;
     case '恢复':
       config.multiGridDisabled = true;
-      config.singleGridDisabled = true;
+      config.singleGridDisabled = false;
       break;
     case '另存为':
       config.multiGridDisabled = true;
-      config.singleGridDisabled = true;
+      config.singleGridDisabled = false;
       break;
     default:
       break;