[Overview Actions] Add a decelerateInterpolator for motion of select mode.

Test: local
Bug: 157777836

Change-Id: I8cbc14c41e9046aa5993fe4add010acdd612539a
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
index 534ef7b..8c0b4b7 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
@@ -30,6 +30,7 @@
 import static com.android.launcher3.Utilities.squaredHypot;
 import static com.android.launcher3.Utilities.squaredTouchSlop;
 import static com.android.launcher3.anim.Interpolators.ACCEL;
+import static com.android.launcher3.anim.Interpolators.ACCEL_0_75;
 import static com.android.launcher3.anim.Interpolators.ACCEL_2;
 import static com.android.launcher3.anim.Interpolators.FAST_OUT_SLOW_IN;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
@@ -1731,7 +1732,7 @@
 
     private void updatePageOffsets() {
         float offset = mAdjacentPageOffset * getWidth();
-        float modalOffset = mTaskModalness * getWidth();
+        float modalOffset = ACCEL_0_75.getInterpolation(mTaskModalness) * getWidth();
         if (mIsRtl) {
             offset = -offset;
             modalOffset = -modalOffset;