manager: Refactor module and superuser UI (#2783)

* Optimized two performance issues:
1. When clicking the BottomBar to enter the SuperUser page from the Home
page
2. When switching the status of the TopAppBar in the Module page

Author: YuKongA

manager/app/src/main/java/me/weishu/kernelsu/ui/MainActivity.kt

@@ -154,7 +154,7 @@ fun MainScreen(navController: DestinationsNavigator) {
             HorizontalPager(
                 modifier = Modifier.hazeSource(state = hazeState),
                 state = pagerState,
-                beyondViewportPageCount = 1,
+                beyondViewportPageCount = 2,
                 userScrollEnabled = false
             ) {
                 when (it) {