make the now playing artist target the whole title block

The artist line is a single bodyMedium line, 20dp, well under the 48dp minimum touch
target. A 48dp artist-only target cannot fit next to the 32dp title inside the 58dp
block without borrowing from the title's bottom edge or from the slider's top padding,
so the block itself becomes the target: 58dp and full width, with no layout change and
nothing to overlap (the slider keeps its own 20dp of top padding before the track).

The trade-off is that tapping the song title now opens the artist too. The test asserts
the measured target is at least 48dp, which fails on a 20dp node.

app/src/main/kotlin/com/subtracks/ui/playback/NowPlayingScreen.kt

@@ -293,8 +293,13 @@ fun NowPlayingScreen(
                             verticalArrangement = Arrangement.spacedBy(6.dp),
                             modifier =
                                 Modifier
+                                    .fillMaxWidth()
                                     .padding(top = 12.dp)
-                                    .height(titleHeight + 6.dp + subtitleHeight),
+                                    .height(titleHeight + 6.dp + subtitleHeight)
+                                    .clickable(
+                                        enabled = onArtistClick != null,
+                                        onClickLabel = "Open artist",
+                                    ) { onArtistClick?.invoke() },
                         ) {
                             Box(Modifier.height(titleHeight), contentAlignment = Alignment.Center) {
                                 Text(
@@ -304,17 +309,7 @@ fun NowPlayingScreen(
                                     modifier = Modifier.basicMarquee(),
                                 )
                             }
-                            Box(
-                                modifier =
-                                    Modifier
-                                        .fillMaxWidth()
-                                        .height(subtitleHeight)
-                                        .clickable(
-                                            enabled = onArtistClick != null,
-                                            onClickLabel = "Open artist",
-                                        ) { onArtistClick?.invoke() },
-                                contentAlignment = Alignment.Center,
-                            ) {
+                            Box(Modifier.height(subtitleHeight), contentAlignment = Alignment.Center) {
                                 Text(
                                     text = state.item?.artist.orEmpty(),
                                     style = subtitleStyle,

app/src/test/kotlin/com/subtracks/ui/playback/NowPlayingTapsTest.kt

@@ -1,11 +1,14 @@
 package com.subtracks.ui.playback
 
 import androidx.activity.ComponentActivity
+import androidx.compose.ui.test.assertHeightIsAtLeast
 import androidx.compose.ui.test.assertIsNotEnabled
+import androidx.compose.ui.test.assertWidthIsAtLeast
 import androidx.compose.ui.test.junit4.v2.createAndroidComposeRule
 import androidx.compose.ui.test.onNodeWithTag
 import androidx.compose.ui.test.onNodeWithText
 import androidx.compose.ui.test.performClick
+import androidx.compose.ui.unit.dp
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import com.subtracks.data.model.CoverArtRef
 import com.subtracks.playback.PlaybackState
@@ -85,6 +88,14 @@ class NowPlayingTapsTest {
         assertTrue("the artist name should open the artist", opened)
     }
 
+    @Test
+    fun theArtistTargetIsAtLeastTheMinimumTouchSize() {
+        render(onArtistClick = {})
+
+        composeRule.onNodeWithText("Radiohead").assertHeightIsAtLeast(48.dp)
+        composeRule.onNodeWithText("Radiohead").assertWidthIsAtLeast(48.dp)
+    }
+
     @Test
     fun theTapTargetsStayInertWithoutADestination() {
         render()