Show a separate tab for the Private Space

This covers all the known Settings pages using the tabbed view model.

https://docs.google.com/document/d/1CdjUjAE84-5ZEPRIfw5KYFjLVHtEZxc_sF0w95su8DA/edit?resourcekey=0-dAACT9HRexY1IyoxMmkVlw#heading=h.58jd58rmznte

Screenshots:
all apps
https://screenshot.googleplex.com/3E5Jm7Pi2JfN64r
with work tab:
https://screenshot.googleplex.com/8egk4yHK5jSENjR

PS Apps Special media management apps
https://screenshot.googleplex.com/BHHafqW7bgUwSGg
with work tab:
https://screenshot.googleplex.com/3cocdhruEmCCh5k

PS Location Services tab view
https://screenshot.googleplex.com/3DqJcT2BFTEpvYT
with work tab:
https://screenshot.googleplex.com/6Avpx6hxSrdGJw5

PS on screen keyboard tab view
https://screenshot.googleplex.com/4FzVNnBWwbUeJNw
with work tab:
https://screenshot.googleplex.com/8E8UhpWq8PL5nxU

PS password account tab view
https://screenshot.googleplex.com/6bDR4AKtth2S3EW
with work tab:
https://screenshot.googleplex.com/9msXV2TdHdJapch

PS storage tab view
https://screenshot.googleplex.com/5Nk2FTxwdmpEv3B
with work tab:
https://screenshot.googleplex.com/79tw2EaWZKfMsnC

PS appl_languages_work
https://screenshot.googleplex.com/3qrREeg3RQdHhhH

Bug: 302278487
Test: manual
Change-Id: I8cd39170827fbe251bc4075ef306206020b3a022

tests/robotests/Android.bp

@@ -59,6 +59,7 @@ android_robolectric_test {
         "androidx.test.rules",
         "androidx.test.runner",
         "flag-junit",
+        "flag-junit-base",
         "aconfig_settings_flags_lib",
         "platform-test-annotations",
         "Settings-testutils2",