Grid change polish bugs.

- Folder icons were too small in landscape.
- Folders can now be 16dp away from the edge
  (used to be 64dp which resulted in super small folders)
- Decrease page spacing back to 8dp
- Decrease PreviewBackground accept scale factor since
  hotseat is now generally smaller.

Bug: 37014334
Bug: 37015359
Change-Id: Icbb53d34136bfdb93796d48f7379da6b9e214345
diff --git a/src/com/android/launcher3/folder/PreviewBackground.java b/src/com/android/launcher3/folder/PreviewBackground.java
index 44ebbcd..eb6a6d5 100644
--- a/src/com/android/launcher3/folder/PreviewBackground.java
+++ b/src/com/android/launcher3/folder/PreviewBackground.java
@@ -88,7 +88,7 @@
     public boolean isClipping = true;
 
     // Drawing / animation configurations
-    private static final float ACCEPT_SCALE_FACTOR = 1.25f;
+    private static final float ACCEPT_SCALE_FACTOR = 1.20f;
     private static final float ACCEPT_COLOR_MULTIPLIER = 1.5f;
 
     // Expressed on a scale from 0 to 255.