Refactor: Add debounce for navigation and optimize comments loading

- Implemented debounced navigation to prevent multiple rapid navigations.
- Replaced Pager-based comment loading with a simpler list-based approach for improved performance and reduced complexity.
- Added loading and error states for comment fetching.
- Introduced `debouncedClickable` modifier for handling click events with debounce.
- Updated image viewer to use simple navigation arrows instead of HorizontalPager for better user experience.
- Added a new string resource for password length error.

app/src/main/java/com/aiosman/ravenow/ui/account/edit2.kt

@@ -41,6 +41,8 @@ import com.aiosman.ravenow.ui.composables.CustomAsyncImage
 import com.aiosman.ravenow.ui.composables.StatusBarMaskLayout
 import com.aiosman.ravenow.ui.composables.StatusBarSpacer
 import com.aiosman.ravenow.ui.composables.form.FormTextInput
+import com.aiosman.ravenow.ui.composables.debouncedClickable
+import com.aiosman.ravenow.ui.composables.rememberDebouncedNavigation
 import com.aiosman.ravenow.ui.modifiers.noRippleClickable
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -56,6 +58,9 @@ fun AccountEditScreen2() {
     val context = LocalContext.current
     var usernameError by remember { mutableStateOf<String?>(null) }
     var bioError by remember { mutableStateOf<String?>(null) }
+    
+    // 防抖导航器
+    val debouncedNavigation = rememberDebouncedNavigation()
     fun onNicknameChange(value: String) {
         // 去除换行符，确保昵称不包含换行
         val cleanValue = value.replace("\n", "").replace("\r", "")
@@ -87,9 +92,11 @@ fun AccountEditScreen2() {
     // 检查是否为游客模式
     if (AppStore.isGuest) {
         LaunchedEffect(Unit) {
-            // 游客模式不允许编辑资料，返回上一页
+            // 游客模式不允许编辑资料，返回上一页（防抖）
+            debouncedNavigation {
                 navController.navigateUp()
             }
+        }
         // 游客模式时不渲染任何内容
         return
     }
@@ -122,19 +129,22 @@ fun AccountEditScreen2() {
                 Icon(
                     modifier = Modifier
                         .size(24.dp)
-                        .noRippleClickable {
-
+                        .debouncedClickable(
+                            enabled = validate() && !model.isUpdating,
+                            debounceTime = 1000L
+                        ) {
                             if (validate() && !model.isUpdating) {
                                 model.viewModelScope.launch {
                                     model.isUpdating = true
                                     model.updateUserProfile(context)
                                     model.viewModelScope.launch(Dispatchers.Main) {
+                                        debouncedNavigation {
                                             navController.navigateUp()
+                                        }
                                         model.isUpdating = false
                                     }
                                 }
                             }
-
                         },
                     imageVector = Icons.Default.Check,
                     contentDescription = "保存",
@@ -172,8 +182,12 @@ fun AccountEditScreen2() {
                             .clip(CircleShape)
                             .background(appColors.main)
                             .align(Alignment.BottomEnd)
-                            .noRippleClickable {
+                            .debouncedClickable(
+                                debounceTime = 800L
+                            ) {
+                                debouncedNavigation {
                                     navController.navigate(NavigationRoute.ImageCrop.route)
+                                }
                             },
                         contentAlignment = Alignment.Center
                     ) {