Refactor some Screens to be classes

Not really much point in keeping these as singletons.
Hopefully allows for these to be GC-ed after closing them.

app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsAdvancedScreen.kt

@@ -114,7 +114,7 @@ object SettingsAdvancedScreen : SearchableSettings {
                     ),
                     Preference.PreferenceItem.TextPreference(
                         title = stringResource(R.string.pref_debug_info),
-                        onClick = { navigator.push(DebugInfoScreen) },
+                        onClick = { navigator.push(DebugInfoScreen()) },
                     ),
                 ),
             )

app/src/main/java/eu/kanade/presentation/more/settings/screen/debug/BackupSchemaScreen.kt

@@ -28,9 +28,11 @@ import eu.kanade.tachiyomi.util.system.copyToClipboard
 import kotlinx.serialization.protobuf.schema.ProtoBufSchemaGenerator
 import tachiyomi.presentation.core.components.material.Scaffold
 
-object BackupSchemaScreen : Screen() {
+class BackupSchemaScreen : Screen() {
 
-    const val title = "Backup file schema"
+    companion object {
+        const val title = "Backup file schema"
+    }
 
     @Composable
     override fun Content() {

app/src/main/java/eu/kanade/presentation/more/settings/screen/debug/DebugInfoScreen.kt

@@ -18,7 +18,8 @@ import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.util.system.DeviceUtil
 import kotlinx.coroutines.guava.await
 
-object DebugInfoScreen : Screen() {
+class DebugInfoScreen : Screen() {
+
     @Composable
     override fun Content() {
         val navigator = LocalNavigator.currentOrThrow
@@ -29,11 +30,11 @@ object DebugInfoScreen : Screen() {
                 listOf(
                     Preference.PreferenceItem.TextPreference(
                         title = WorkerInfoScreen.title,
-                        onClick = { navigator.push(WorkerInfoScreen) },
+                        onClick = { navigator.push(WorkerInfoScreen()) },
                     ),
                     Preference.PreferenceItem.TextPreference(
                         title = BackupSchemaScreen.title,
-                        onClick = { navigator.push(BackupSchemaScreen) },
+                        onClick = { navigator.push(BackupSchemaScreen()) },
                     ),
                     getAppInfoGroup(),
                     getDeviceInfoGroup(),
@@ -67,11 +68,15 @@ object DebugInfoScreen : Screen() {
     @Composable
     @ReadOnlyComposable
     private fun getWebViewVersion(): String {
-        val webView = WebView.getCurrentWebViewPackage() ?: return "how did you get here?"
-        val pm = LocalContext.current.packageManager
-        val label = webView.applicationInfo.loadLabel(pm)
-        val version = webView.versionName
-        return "$label $version"
+        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val webView = WebView.getCurrentWebViewPackage() ?: return "how did you get here?"
+            val pm = LocalContext.current.packageManager
+            val label = webView.applicationInfo.loadLabel(pm)
+            val version = webView.versionName
+            return "$label $version"
+        } else {
+            return "Unknown"
+        }
     }
 
     @Composable

app/src/main/java/eu/kanade/presentation/more/settings/screen/debug/WorkerInfoScreen.kt

@@ -43,9 +43,11 @@ import kotlinx.coroutines.flow.stateIn
 import tachiyomi.presentation.core.components.material.Scaffold
 import tachiyomi.presentation.core.util.plus
 
-object WorkerInfoScreen : Screen() {
+class WorkerInfoScreen : Screen() {
 
-    const val title = "Worker info"
+    companion object {
+        const val title = "Worker info"
+    }
 
     @Composable
     override fun Content() {