Migrate ReaderPageSheet to Compose

(cherry picked from commit f2b0d74b4cd6740b708e587f18c6cc798287dbe8)

# Conflicts:
#	app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt
#	app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderPageSheet.kt
#	app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderViewModel.kt
#	app/src/main/res/layout/reader_page_sheet.xml

presentation-core/src/main/java/tachiyomi/presentation/core/components/ActionButton.kt

@@ -0,0 +1,40 @@
+package tachiyomi.presentation.core.components
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.material3.Icon
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun ActionButton(
+    modifier: Modifier = Modifier,
+    title: String,
+    icon: ImageVector,
+    onClick: () -> Unit,
+) {
+    TextButton(
+        modifier = modifier,
+        onClick = onClick,
+    ) {
+        Column(
+            verticalArrangement = Arrangement.spacedBy(4.dp),
+            horizontalAlignment = Alignment.CenterHorizontally,
+        ) {
+            Icon(
+                imageVector = icon,
+                contentDescription = null,
+            )
+            Text(
+                text = title,
+                textAlign = TextAlign.Center,
+            )
+        }
+    }
+}

presentation-core/src/main/java/tachiyomi/presentation/core/screens/EmptyScreen.kt

@@ -4,17 +4,13 @@ import androidx.annotation.StringRes
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.paddingFromBaseline
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
-import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
@@ -24,6 +20,7 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.util.fastForEach
+import tachiyomi.presentation.core.components.ActionButton
 import tachiyomi.presentation.core.components.material.padding
 import tachiyomi.presentation.core.util.secondaryItemAlpha
 import kotlin.random.Random
@@ -96,31 +93,6 @@ fun EmptyScreen(
     }
 }
 
-@Composable
-private fun ActionButton(
-    modifier: Modifier = Modifier,
-    title: String,
-    icon: ImageVector,
-    onClick: () -> Unit,
-) {
-    TextButton(
-        modifier = modifier,
-        onClick = onClick,
-    ) {
-        Column(horizontalAlignment = Alignment.CenterHorizontally) {
-            Icon(
-                imageVector = icon,
-                contentDescription = null,
-            )
-            Spacer(Modifier.height(4.dp))
-            Text(
-                text = title,
-                textAlign = TextAlign.Center,
-            )
-        }
-    }
-}
-
 private val ERROR_FACES = listOf(
     "(･o･;)",
     "Σ(ಠ_ಠ)",