Fix panel bugs

Add unique task affinity so the panel activity
always opens alone. Apparently the launchMode="singleTop" was
insufficient.

Test: manual app
Fixes: 126385021
Fixes: 126386586
Fixes: 126326438
Change-Id: I775e84701d006cfbe0d9ddfff83669b3f8487b33
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 6724ff5..a5586f7 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -3009,6 +3009,7 @@
             android:theme="@style/Theme.BottomDialog"
             android:excludeFromRecents="true"
             android:launchMode="singleTop"
+            android:taskAffinity=".panel.SettingsPanelActivity"
             android:exported="true">
                  <intent-filter>
                      <action android:name="android.settings.panel.action.INTERNET_CONNECTIVITY" />