Exported A11y features blocked by IT admin can be bypassed using a11y shortcuts

Root cause: The IT admin dialog cannot be launched by framework features.
Solution: Allow framework features can launch the IT admin dialog to align the setting preference experience.

Bug: 254223085
Test: atest AccessibilityShortcutChooserActivityTest
Change-Id: I1c0ce8244d874049cc2799c580b2f79ece85d32d
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 5352562..e67b28a 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -3966,7 +3966,7 @@
                   android:theme="@style/Theme.AlertDialog"
                   android:taskAffinity="com.android.settings.appops"
                   android:excludeFromRecents="true"
-                  android:exported="false"
+                  android:exported="true"
                   android:launchMode="singleTop">
             <intent-filter android:priority="1">
                 <action android:name="android.settings.SHOW_RESTRICTED_SETTING_DIALOG" />