App Shortcut menu bug fixes and polish.

- Widget is its own item.
- Change order of icon order.
- Update grab handle colors

Bug: 188095695
Test: long press on apps with/without widgets, long press apps on workspace/
      all apps/search

Change-Id: Iabb9b4b3f3a928103b9d62601f22e74ef2325d7c

quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java

@@ -422,8 +422,8 @@ public abstract class BaseQuickstepLauncher extends Launcher
 
     @Override
     public Stream<SystemShortcut.Factory> getSupportedShortcuts() {
-        return Stream.concat(super.getSupportedShortcuts(),
-                Stream.of(WellbeingModel.SHORTCUT_FACTORY));
+        return Stream.concat(Stream.of(WellbeingModel.SHORTCUT_FACTORY),
+                super.getSupportedShortcuts());
     }
 
     @Override