Fixed uninstall app screen not expanding properly.

Before: https://screenshot.googleplex.com/P9k547jayoy
After: https://screenshot.googleplex.com/89E21JLBjzJ

Bug: 142130446
Test: Manual test on Q builds.
Change-Id: Ie3eba56ad408016ecc84b0df811c8dd8a1e3df3d

packages/PackageInstaller/res/values-television/themes.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2019 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
+  -->
+
+<resources>
+
+    <style name="Theme.AlertDialogActivity.NoAnimation">
+        <item name="android:windowAnimationStyle">@null</item>
+    </style>
+
+    <style name="Theme.AlertDialogActivity"
+           parent="@android:style/Theme.DeviceDefault.Light.Dialog.Alert" />
+
+    <style name="Theme.AlertDialogActivity.NoActionBar"
+           parent="@android:style/Theme.DeviceDefault.Light.NoActionBar">
+    </style>
+
+</resources>