Began implementation of Dialer dark theme.

 - README on how to properly theme Dialer going forward.
 - Migrated all widgets to use global colors.
 - Removed all activity and application themes where it wasn't necessary.
 - Added themeing test rule for Espresso tests.

Bug: 79883035
Test: tap
PiperOrigin-RevId: 197634256
Change-Id: I4b7d94d45aeeb59d484b0069fdd1e200a654910b
diff --git a/java/com/android/incallui/call/DialerCall.java b/java/com/android/incallui/call/DialerCall.java
index da7c54d..b2c8dcc 100644
--- a/java/com/android/incallui/call/DialerCall.java
+++ b/java/com/android/incallui/call/DialerCall.java
@@ -80,7 +80,7 @@
 import com.android.dialer.spam.status.SpamStatus;
 import com.android.dialer.telecom.TelecomCallUtil;
 import com.android.dialer.telecom.TelecomUtil;
-import com.android.dialer.theme.R;
+import com.android.dialer.theme.common.R;
 import com.android.dialer.time.Clock;
 import com.android.dialer.util.PermissionsUtil;
 import com.android.incallui.audiomode.AudioModeProvider;