feat: 🎉新增 页面切换动画 功能

- 实现了在项目配置中可配置页面切换动画
- 编写 页面切换动画 功能单元测试

src/lang/package/en.json

@@ -72,6 +72,11 @@
     "showAppLogo": "Show App Logo",
     "sidebarColorScheme": "Sidebar Color Scheme",
     "showWatermark": "Show Watermark",
+    "pageSwitchingAnimation": "Page Switching Animation",
+    "none": "None",
+    "fade": "Fade",
+    "fade-slide": "Fade Slide",
+    "fade-scale": "Fade Scale",
     "classicBlue": "Classic Blue",
     "minimalWhite": "Minimal White",
     "copyConfig": "Copy Config",