(Once more) fix minimum height of mode name edit box for a11y

We had fixed this before and then regressed when moving to TextInputLayout, so added a proper test this time.

Fixes: 380207192
Test: atest ZenModeEditNamePreferenceControllerTest
Flag: android.app.modes_ui
Change-Id: Ic25b0a5a6997e7b3bb26bf26ed7e8e92654a1c11

res/layout/modes_edit_name.xml

@@ -41,6 +41,7 @@
             android:id="@android:id/edit"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
+            android:minHeight="48dp"
             android:maxLines="1"
             android:inputType="text|textCapSentences"
             android:imeOptions="actionDone"