fix(ui): align article title with the first search result in two panes

In landscape the detail pane rendered the title inside a fixed 56.dp
bar and centered the text in it, so the headword sat about 14 dp lower
than the first search result next to it. Add a compact variant of the
title bar without the fixed height; the title line now shares the top
offset of the first list row.

app/src/main/java/com/example/research/ui/article/ArticleScreen.kt

@@ -211,7 +211,8 @@ fun ArticleTitleBar(
     articleState: ArticleState?,
     showBackButton: Boolean,
     onNavigateBack: () -> Unit,
-    modifier: Modifier = Modifier
+    modifier: Modifier = Modifier,
+    compact: Boolean = false,
 ) {
     val title = when (articleState) {
         is ArticleState.Loading -> articleState.title
@@ -230,9 +231,14 @@ fun ArticleTitleBar(
             modifier = Modifier
                 .fillMaxWidth()
                 .windowInsetsPadding(AppWindowInsets.topAndHorizontalSafeDrawing)
-                .padding(
-                    top = Spacing.listItemVertical,
-                    bottom = Spacing.listItemVertical
+                .then(
+                    if (compact) {
+                        Modifier.padding(vertical = Spacing.listItemVertical)
+                    } else {
+                        Modifier
+                            .padding(top = Spacing.topBarPadding, bottom = Spacing.topBarPadding)
+                            .height(Spacing.topBarHeight)
+                    }
                 ),
             verticalAlignment = Alignment.CenterVertically
         ) {

app/src/main/java/com/example/research/ui/main/AdaptiveMainScreen.kt

@@ -99,6 +99,7 @@ fun AdaptiveMainScreen(
                         articleState = articleState,
                         showBackButton = isShowingDetail && articleState != null,
                         onNavigateBack = onNavigateBackFromArticle,
+                        compact = true,
                         modifier = Modifier.windowInsetsPadding(
                             WindowInsets.safeDrawing.only(WindowInsetsSides.Top)
                         )