Enable Linux terminal app via developer settings

LinuxInstaller wouldn't enable linux terminal app any more.
(and will be merged to terminal app soon)

Bug: 369246712
Test: `atest SettingsRoboTests`, try toggle the option, \
      and try search with 'Linux'.
Flag: RELEASE_AVF_SUPPORT_CUSTOM_VM_WITH_PARAVIRTUALIZED_DEVICES
Change-Id: I1f00dd7114b7b4e0f95c069481637d853b5de9a9
diff --git a/android/TerminalApp/AndroidManifest.xml b/android/TerminalApp/AndroidManifest.xml
index f09412e..bd1395a 100644
--- a/android/TerminalApp/AndroidManifest.xml
+++ b/android/TerminalApp/AndroidManifest.xml
@@ -12,15 +12,18 @@
     <uses-feature android:name="android.software.virtualization_framework" android:required="true" />
 
     <application
-	android:label="@string/app_name"
+        android:label="@string/app_name"
         android:icon="@mipmap/ic_launcher"
         android:theme="@style/Theme.Material3.DayNight.NoActionBar"
-        android:usesCleartextTraffic="true">
+        android:usesCleartextTraffic="true"
+        android:enabled="false">
         <activity android:name=".MainActivity"
                   android:configChanges="orientation|screenSize|keyboard|keyboardHidden|navigation|uiMode|screenLayout|smallestScreenSize"
                   android:exported="true">
             <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
                 <action android:name="android.virtualization.VM_TERMINAL" />
+                <category android:name="android.intent.category.LAUNCHER" />
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
         </activity>
@@ -44,20 +47,9 @@
                 android:name="${applicationId}.SplitInitializer"
                 android:value="androidx.startup" />
         </provider>
-        <activity-alias
-            android:name=".MainActivityAlias"
-            android:targetActivity="com.android.virtualization.terminal.MainActivity"
-            android:exported="true"
-            android:enabled="false" >
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
-        </activity-alias>
 
         <service
             android:name="com.android.virtualization.vmlauncher.VmLauncherService"
-            android:enabled="true"
             android:exported="false"
             android:foregroundServiceType="specialUse">
             <property