[MOB - 3271] - xml changes for Android 12

Adding "exported: false" to InboxActivity and InboxMessageActivity.
Service - Firebase already had this flag.

This flag indicates whether the given application component is available to other applications. If false, it can only be accessed by same package. If true, it can be invoked by external entities.

Author: Ayyanchira

iterableapi-ui/src/main/AndroidManifest.xml

@@ -3,8 +3,10 @@
     <application>
         <activity
             android:name=".inbox.IterableInboxActivity"
-            android:label="Inbox"/>
+            android:exported="false"
+            android:label="Inbox" />
         <activity
-            android:name=".inbox.IterableInboxMessageActivity"/>
+            android:name=".inbox.IterableInboxMessageActivity"
+            android:exported="false"/>
     </application>
 </manifest>

iterableapi/src/test/AndroidManifest.xml

@@ -4,7 +4,8 @@ package="com.iterable.iterableapi" android:versionName="1.2.3" android:versionCo
     <application
         android:label="IterableAPI"
         android:supportsRtl="true">
-        <activity android:name=".unit.MainActivity">
+        <activity android:name=".unit.MainActivity"
+            android:exported="false">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />