Use list background content for empty list

Author: prof18

desktopApp/src/jvmMain/kotlin/com/prof18/feedflow/desktop/home/DesktopHomeScreenContent.kt

@@ -84,7 +84,9 @@ fun DesktopHomeScreenContent(
             )
         }
     }
-    val contentContainerColor = displayState.feedLayout.contentContainerColor()
+    val contentContainerColor = displayState.feedLayout.contentContainerColor(
+        hasFeedItems = displayState.feedItems.isNotEmpty(),
+    )
 
     Scaffold(
         modifier = modifier,
@@ -291,8 +293,8 @@ private fun FeedLayout.isCardStyleLayout() = when (this) {
 }
 
 @Composable
-private fun FeedLayout.contentContainerColor(): Color =
-    if (isCardStyleLayout()) {
+private fun FeedLayout.contentContainerColor(hasFeedItems: Boolean): Color =
+    if (hasFeedItems && isCardStyleLayout()) {
         MaterialTheme.colorScheme.surfaceContainer
     } else {
         MaterialTheme.colorScheme.surface

sharedUI/src/commonMain/kotlin/com/prof18/feedflow/shared/ui/home/components/list/FeedListView.kt

@@ -119,7 +119,7 @@ fun FeedList(
     feedItemDisplaySettings: FeedItemDisplaySettings = FeedItemDisplaySettings(),
 ) {
     val itemFeedLayout = feedLayout.normalizeForFeedList()
-    val feedBackgroundModifier = if (itemFeedLayout.usesCardBackground()) {
+    val feedBackgroundModifier = if (itemFeedLayout.usesCardBackground() && feedItems.isNotEmpty()) {
         Modifier.background(MaterialTheme.colorScheme.surfaceContainer)
     } else {
         Modifier