[FIX/#336] add DEFAULT intent filter

Author: leeeyubin

feature/main/src/main/AndroidManifest.xml

@@ -12,6 +12,7 @@
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
+                <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>