Migrate to M3 Expressive loading indicator

app/src/main/kotlin/com/hippo/ehviewer/ui/main/GalleryList.kt

@@ -223,7 +223,7 @@ fun GalleryList(
             }
         }
 
-        PullToRefreshDefaults.Indicator(
+        PullToRefreshDefaults.LoadingIndicator(
             state = refreshState,
             isRefreshing = isRefreshing,
             modifier = Modifier.align(Alignment.TopCenter).padding(top = contentPadding.calculateTopPadding())

app/src/main/kotlin/com/hippo/ehviewer/ui/screen/GalleryCommentsScreen.kt

@@ -47,6 +47,8 @@ import androidx.compose.material3.TextButton
 import androidx.compose.material3.TopAppBar
 import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.material3.pulltorefresh.PullToRefreshBox
+import androidx.compose.material3.pulltorefresh.PullToRefreshDefaults
+import androidx.compose.material3.pulltorefresh.rememberPullToRefreshState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.CompositionLocalProvider
 import androidx.compose.runtime.LaunchedEffect
@@ -297,6 +299,7 @@ fun AnimatedVisibilityScope.GalleryCommentsScreen(gid: Long, navigator: Destinat
         val keylineMargin = dimensionResource(id = R.dimen.keyline_margin)
         var editTextMeasured by remember { mutableStateOf(MinimumContentPaddingEditText) }
         var isRefreshing by remember { mutableStateOf(false) }
+        val refreshState = rememberPullToRefreshState()
         PullToRefreshBox(
             isRefreshing = isRefreshing,
             onRefresh = {
@@ -309,6 +312,14 @@ fun AnimatedVisibilityScope.GalleryCommentsScreen(gid: Long, navigator: Destinat
                 }
             },
             modifier = Modifier.fillMaxSize().imePadding().padding(top = paddingValues.calculateTopPadding()),
+            state = refreshState,
+            indicator = {
+                PullToRefreshDefaults.LoadingIndicator(
+                    modifier = Modifier.align(Alignment.TopCenter),
+                    isRefreshing = isRefreshing,
+                    state = refreshState,
+                )
+            },
         ) {
             val additionalPadding = if (commenting) {
                 editTextMeasured