Remove +1 in Page Layout reader settings

Author: jobobby04

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

@@ -597,7 +597,7 @@ object SettingsReaderScreen : SearchableSettings {
                     title = stringResource(SYMR.strings.page_layout),
                     subtitle = stringResource(SYMR.strings.automatic_can_still_switch),
                     entries = ReaderPreferences.PageLayouts
-                        .mapIndexed { index, it -> index + 1 to stringResource(it) }
+                        .mapIndexed { index, it -> index to stringResource(it) }
                         .toMap()
                         .toImmutableMap(),
                 ),