Hide private installer option for stable builds

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

@@ -45,6 +45,7 @@ import eu.kanade.tachiyomi.network.PREF_DOH_QUAD9
 import eu.kanade.tachiyomi.network.PREF_DOH_SHECAN
 import eu.kanade.tachiyomi.ui.more.OnboardingScreen
 import eu.kanade.tachiyomi.util.CrashLogUtil
+import eu.kanade.tachiyomi.util.system.isDevFlavor
 import eu.kanade.tachiyomi.util.system.isPreviewBuildType
 import eu.kanade.tachiyomi.util.system.isReleaseBuildType
 import eu.kanade.tachiyomi.util.system.isShizukuInstalled
@@ -370,6 +371,14 @@ object SettingsAdvancedScreen : SearchableSettings {
                     pref = extensionInstallerPref,
                     title = stringResource(MR.strings.ext_installer_pref),
                     entries = extensionInstallerPref.entries
+                        .filter {
+                            // TODO: allow private option in stable versions once URL handling is more fleshed out
+                            if (isPreviewBuildType || isDevFlavor) {
+                                true
+                            } else {
+                                it != BasePreferences.ExtensionInstaller.PRIVATE
+                            }
+                        }
                         .associateWith { stringResource(it.titleRes) }
                         .toImmutableMap(),
                     onValueChanged = {