Don't fade out active page outline during drag-and-drop

=> Keep page backgrounds stable and only slightly modify the alpha + add stroke for active page
=> Don't shrink cell outlines to be too small (issue in hotseat on some devices)
=> Reduce cell radius to 22dp

Bug: 185163323
Test: manual

Change-Id: Ic17999f5672a3355dceeb25af923f02e960389d9
diff --git a/res/values/config.xml b/res/values/config.xml
index f8a517d..1e78373 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -35,7 +35,7 @@
     <!-- Workspace -->
     <!-- The duration (in ms) of the fade animation on the object outlines, used when
          we are dragging objects around on the home screen. -->
-    <integer name="config_dragOutlineFadeTime">900</integer>
+    <integer name="config_dragOutlineFadeTime">500</integer>
 
     <!-- The alpha value at which to show the most recent drop visualization outline. -->
     <integer name="config_dragOutlineMaxAlpha">255</integer>