新增发现页

新增发现页，展示所有动态的缩略图，点击可跳转到对应动态详情页。

app/src/main/java/com/aiosman/riderpro/ui/Navi.kt

@@ -43,6 +43,7 @@ import com.aiosman.riderpro.ui.login.LoginPage
 import com.aiosman.riderpro.ui.login.SignupScreen
 import com.aiosman.riderpro.ui.login.UserAuthScreen
 import com.aiosman.riderpro.ui.index.tabs.message.NotificationsScreen
+import com.aiosman.riderpro.ui.index.tabs.search.SearchScreen
 import com.aiosman.riderpro.ui.modification.EditModificationScreen
 import com.aiosman.riderpro.ui.post.NewPostImageGridScreen
 import com.aiosman.riderpro.ui.post.NewPostScreen
@@ -75,6 +76,7 @@ sealed class NavigationRoute(
     data object ChangePasswordScreen : NavigationRoute("ChangePasswordScreen")
     data object FavouritesScreen : NavigationRoute("FavouritesScreen")
     data object NewPostImageGrid : NavigationRoute("NewPostImageGrid")
+    data object Search : NavigationRoute("Search")
 }
 
 
@@ -219,6 +221,13 @@ fun NavigationController(
         composable(route = NavigationRoute.NewPostImageGrid.route) {
             NewPostImageGridScreen()
         }
+        composable(route = NavigationRoute.Search.route) {
+            CompositionLocalProvider(
+                LocalAnimatedContentScope provides this,
+            ) {
+                SearchScreen()
+            }
+        }
     }