Inline notification_row_user_context

Bug: 317503801
Test: atest ExpandableNotificationRowTest
Flag: ACONFIG com.android.systemui.notification_row_user_context NEXTFOOD
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:55176f645a463ad0ac3259e8330406b058104fba)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:0b3ab98ca892dca961fb1bbbe98462a8c584dbcc)
Merged-In: Id07dc8feb39b08b38300ab3f73f98f602dc2a0db
Change-Id: Id07dc8feb39b08b38300ab3f73f98f602dc2a0db
24D1-dev is based on 24Q2-release. Therefore, we merged this CL to 24D1-dev.