Fixing background jump when closing a widget

We do not add background animation when opening target is translucent
Added additional check to not animate background if launcher is not
closing (which is already a subset of all-targets-translucent)

Also removing reverse background animation from widgets, similar
to app-icons as it is never added for launcherNotClosing path

Bug: 242379946
Test: Added translucent activtiy and widget and verified manually
      that the behavior does not change
Change-Id: Icda8007c0063295bf8431c00a0f0b665ecdef109

tests/src/com/android/launcher3/testcomponent/DialogTestActivity.java

@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.testcomponent;
+
+
+/**
+ * Extension of BaseTestingActivity with a Dialog theme
+ */
+public class DialogTestActivity extends BaseTestingActivity {}