Differentiate the edge sensitivity from the edge panel size

Bug: 129492856
Test: Swipe from edge
Change-Id: I3b2ce3dd6b3633da1f83c8943538f0f4af5ce481
diff --git a/packages/overlays/NavigationBarModeGesturalOverlay/res/values/config.xml b/packages/overlays/NavigationBarModeGesturalOverlay/res/values/config.xml
index 23d2e7b..704ff2e 100644
--- a/packages/overlays/NavigationBarModeGesturalOverlay/res/values/config.xml
+++ b/packages/overlays/NavigationBarModeGesturalOverlay/res/values/config.xml
@@ -31,6 +31,6 @@
     <bool name="config_navBarTapThrough">true</bool>
 
     <!-- Controls the size of the back gesture inset. -->
-    <dimen name="config_backGestureInset">48dp</dimen>
+    <dimen name="config_backGestureInset">20dp</dimen>
 
 </resources>