Use context from SystemUiDialog to fix button style. Test: atest -c com.android.systemui.qs.tiles.dialog.bluetooth Bug: b/329308541 Flag: NA (cherry picked from commit f8c88c671b33c14c27c04c430e897d8bb0e5cda7) Change-Id: I4e0bd33975fc4d44bb0680a69fca4232328a45b2 Merged-In: I4e0bd33975fc4d44bb0680a69fca4232328a45b2