stats: name the phone's OS instead of only GrapheneOS or other

Reports GrapheneOS, CalyxOS, /e/OS, iodeOS, DivestOS, LineageOS, or stock with the brand.

gearslip/src/main/AndroidManifest.xml

@@ -75,8 +75,10 @@
          LAUNCHER query below to find, so the setup guide's Android Auto check needs this to see
          whether the package is installed at all. -->
     <package android:name="com.google.android.projection.gearhead" />
-    <!-- Every GrapheneOS install has this; the opt-in usage note uses it to say "GrapheneOS". -->
+    <!-- The opt-in usage note names the OS: GrapheneOS's setup app and /e/OS's app store give
+         them away (UsageStats.osName). -->
     <package android:name="app.grapheneos.setupwizard" />
+    <package android:name="foundation.e.apps" />
     <intent>
         <action android:name="android.intent.action.MAIN" />
         <category android:name="android.intent.category.LAUNCHER" />