feat: 更新视图组件以优化用户交互体验

- 在CreateFeedView中添加视图消失时重置键盘状态的逻辑，提升用户体验。
- 在DetailView中调整顶部内边距，改善布局效果。
- 在FeedListView中新增刷新功能的回调，增强动态加载体验。
- 在MainView中为底部导航栏留出空间并固定在底部，优化界面布局。

yana/Views/CreateFeedView.swift

@@ -163,6 +163,10 @@ struct CreateFeedView: View {
         .onReceive(NotificationCenter.default.publisher(for: UIResponder.keyboardWillHideNotification)) { _ in
             keyboardHeight = 0
         }
+        .onDisappear {
+            // 确保视图消失时重置键盘状态
+            keyboardHeight = 0
+        }
     }
     
 }

yana/Views/DetailView.swift

@@ -35,7 +35,7 @@ struct DetailView: View {
                         }
                     )
                 }
-                .padding(.top, 44)
+                .padding(.top, 24)
                 
                 // 内容区域
                 ScrollView {
@@ -57,6 +57,7 @@ struct DetailView: View {
                             )
                             .padding(.horizontal, 16)
                             .padding(.top, 16)
+                            .padding(.bottom, 116)
                         }
                     }
                 }

yana/Views/FeedListView.swift

@@ -123,6 +123,7 @@ struct MomentsListView: View {
     let onMomentTap: (MomentsInfo) -> Void
     let onLikeTap: (Int, Int, Int, Int) -> Void
     let onLoadMore: () -> Void
+    let onRefresh: () -> Void
     let likeLoadingDynamicIds: Set<Int>
     
     var body: some View {
@@ -161,7 +162,7 @@ struct MomentsListView: View {
             .padding(.bottom, 20)
         }
         .refreshable {
-            onLoadMore()
+            onRefresh()
         }
     }
 }
@@ -196,6 +197,9 @@ struct FeedListContentView: View {
                     onLoadMore: {
                         viewStore.send(.loadMore)
                     },
+                    onRefresh: {
+                        viewStore.send(.reload)
+                    },
                     likeLoadingDynamicIds: viewStore.likeLoadingDynamicIds
                 )
             }

yana/Views/MainView.swift

@@ -90,7 +90,9 @@ struct InternalMainView: View {
                     selectedTab: viewStore.selectedTab
                 )
                 .frame(maxWidth: .infinity, maxHeight: .infinity)
-                // 底部导航栏
+                .padding(.bottom, 80) // 为底部导航栏留出空间
+                
+                // 底部导航栏 - 固定在底部
                 VStack {
                     Spacer()
                     BottomTabView(selectedTab: viewStore.binding(
@@ -98,6 +100,8 @@ struct InternalMainView: View {
                         send: { MainFeature.Action.selectTab(MainFeature.Tab(rawValue: $0.rawValue) ?? .feed) }
                     ))
                 }
+                .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .bottom)
+                .ignoresSafeArea(.keyboard, edges: .bottom)
                 
                 // 添加API Loading和错误处理视图
                 APILoadingEffectView()