settings: name the setting ReplayGain and rework the preamp dialog

- Call it ReplayGain, which is the name of the standard, in the row, the
  prompt and the preamp prompt.
- Give the slider room under the prompt instead of sitting against it.
- Put Reset in the button row, where it lines up with Cancel and Done,
  rather than above them, and centre the decibel value that is left in
  the content.
- Add a screenshot test that scrolls to the section and opens the dialog,
  which also composes the new rows; the existing screenshot only captures
  the top of the list, so it never rendered them.

app/src/main/kotlin/com/subtracks/ui/settings/SettingsScreen.kt

@@ -62,6 +62,7 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalResources
 import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
@@ -780,6 +781,7 @@ private fun ReplayGainPreampDialog(
                     style = MaterialTheme.typography.titleSmall,
                     color = MaterialTheme.colorScheme.primary,
                 )
+                Spacer(Modifier.height(16.dp))
                 Row(verticalAlignment = Alignment.CenterVertically) {
                     IconButton(
                         onClick = { draft = stepReplayGainPreampDb(draft, -1) },
@@ -807,29 +809,31 @@ private fun ReplayGainPreampDialog(
                         )
                     }
                 }
-                Row(
-                    verticalAlignment = Alignment.CenterVertically,
+                Text(
+                    replayGainPreampLabel(resources, draft),
+                    textAlign = TextAlign.Center,
                     modifier = Modifier.fillMaxWidth(),
-                ) {
-                    Text(replayGainPreampLabel(resources, draft))
-                    Spacer(Modifier.weight(1f))
-                    TextButton(
-                        onClick = { draft = 0f },
-                        enabled = draft != 0f,
-                    ) { Text(stringResource(R.string.settings_replay_gain_preamp_reset)) }
-                }
+                )
             }
         },
         confirmButton = {
-            TextButton(
-                onClick = {
-                    onSelect(draft)
-                    onDismiss()
-                },
-            ) { Text(stringResource(R.string.action_done)) }
-        },
-        dismissButton = {
-            TextButton(onClick = onDismiss) { Text(stringResource(R.string.actions_cancel)) }
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                modifier = Modifier.fillMaxWidth(),
+            ) {
+                TextButton(
+                    onClick = { draft = 0f },
+                    enabled = draft != 0f,
+                ) { Text(stringResource(R.string.settings_replay_gain_preamp_reset)) }
+                Spacer(Modifier.weight(1f))
+                TextButton(onClick = onDismiss) { Text(stringResource(R.string.actions_cancel)) }
+                TextButton(
+                    onClick = {
+                        onSelect(draft)
+                        onDismiss()
+                    },
+                ) { Text(stringResource(R.string.action_done)) }
+            }
         },
     )
 }

app/src/main/res/values/strings.xml

@@ -79,12 +79,12 @@
     <string name="settings_replay_gain_mode_track">Track gain</string>
     <string name="settings_replay_gain_preamp_decrease">Lower preamp</string>
     <string name="settings_replay_gain_preamp_increase">Raise preamp</string>
-    <string name="settings_replay_gain_preamp_prompt">Adjust level on top of the replay gain</string>
+    <string name="settings_replay_gain_preamp_prompt">Adjust level on top of the ReplayGain</string>
     <string name="settings_replay_gain_preamp_reset">Reset</string>
     <string name="settings_replay_gain_preamp_title">Preamp</string>
     <string name="settings_replay_gain_preamp_value">%1$s dB</string>
-    <string name="settings_replay_gain_prompt">Normalise loudness using the gain from the server</string>
-    <string name="settings_replay_gain_title">Replay gain</string>
+    <string name="settings_replay_gain_prompt">Normalise loudness with the server\'s ReplayGain</string>
+    <string name="settings_replay_gain_title">ReplayGain</string>
     <string name="settings_network_name">Network</string>
     <string name="settings_network_options_max_bitrate_mobile_title">Stream quality: Mobile</string>
     <string name="settings_network_options_max_bitrate_wifi_title">Stream quality: Wi-Fi</string>

app/src/test/kotlin/com/subtracks/ui/AppScreenshotTest.kt

@@ -12,11 +12,15 @@ import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.test.assertCountEquals
+import androidx.compose.ui.test.hasScrollAction
+import androidx.compose.ui.test.hasText
 import androidx.compose.ui.test.junit4.v2.createAndroidComposeRule
 import androidx.compose.ui.test.onAllNodesWithContentDescription
 import androidx.compose.ui.test.onAllNodesWithTag
 import androidx.compose.ui.test.onAllNodesWithText
 import androidx.compose.ui.test.onRoot
+import androidx.compose.ui.test.performClick
+import androidx.compose.ui.test.performScrollToNode
 import androidx.compose.ui.test.performTouchInput
 import androidx.compose.ui.test.swipeUp
 import androidx.paging.PagingData
@@ -340,6 +344,21 @@ class AppScreenshotTest {
 
     @Test
     fun settings() {
+        setSettingsContent()
+        awaitText("Navidrome")
+        composeRule.onRoot().captureRoboImage("src/test/screenshots/settings.png")
+    }
+
+    @Test
+    fun replayGainPreampDialog() {
+        setSettingsContent()
+        composeRule.onNode(hasScrollAction()).performScrollToNode(hasText("Preamp"))
+        composeRule.onAllNodesWithText("Preamp")[0].performClick()
+        composeRule.waitForIdle()
+        composeRule.onRoot().captureRoboImage("src/test/screenshots/replay_gain_preamp.png")
+    }
+
+    private fun setSettingsContent() {
         composeRule.setContent {
             SubtracksTheme {
                 SettingsScreen(
@@ -367,8 +386,6 @@ class AppScreenshotTest {
                 )
             }
         }
-        awaitText("Navidrome")
-        composeRule.onRoot().captureRoboImage("src/test/screenshots/settings.png")
     }
 
     @Test