Migrate the About page in Settings.

This change adds the "About" page and the "Device name" Preference.

However, due to the lack of editable text support in the alert dialog (SPA widget), the device name can't be changed at the moment.

Bug: 269486170
Test: manual, see screenshots.
Change-Id: Ie6b034d82b1718c8f22366ef525fd6d36e4df9ad

src/com/android/settings/spa/SettingsSpaEnvironment.kt

@@ -17,6 +17,7 @@
 package com.android.settings.spa
 
 import android.content.Context
+import com.android.settings.spa.about.AboutPhonePageProvider
 import com.android.settings.spa.app.AllAppListPageProvider
 import com.android.settings.spa.app.AppsMainPageProvider
 import com.android.settings.spa.app.appinfo.AppInfoSettingsProvider
@@ -81,6 +82,7 @@ open class SettingsSpaEnvironment(context: Context) : SpaEnvironment(context) {
                 BackgroundInstalledAppsPageProvider,
                 CloneAppInfoSettingsProvider,
                 NetworkAndInternetPageProvider,
+                AboutPhonePageProvider,
                 ) + togglePermissionAppListTemplate.createPageProviders(),
             rootPages = listOf(
                 SettingsPage.create(HomePageProvider.name),