Inflate dismissal background instead of drawing while swiping

- Only swipe the foreground out to have the background revealed.
- Inflate dismissal_swipe_background.xml while swiping.
- Fix the fly-in transition.
- Fix the overlapping problem.

Bug: 129742618
Test: robotests
Change-Id: I5311e50332d0ea0437d1693d075d5c3a2176a443

src/com/android/settings/homepage/contextualcards/slices/SliceFullCardRendererHelper.java

@@ -18,6 +18,7 @@ package com.android.settings.homepage.contextualcards.slices;
 
 import android.content.Context;
 import android.view.View;
+import android.widget.LinearLayout;
 
 import androidx.recyclerview.widget.RecyclerView;
 import androidx.slice.Slice;
@@ -70,10 +71,12 @@ class SliceFullCardRendererHelper {
 
     static class SliceViewHolder extends RecyclerView.ViewHolder {
         public final SliceView sliceView;
+        public final LinearLayout sliceViewWrapper;
 
         public SliceViewHolder(View view) {
             super(view);
             sliceView = view.findViewById(R.id.slice_view);
+            sliceViewWrapper = view.findViewById(R.id.slice_view_wrapper);
         }
     }
 }