fix: correct LAUNCHER category and add manifest package attribute

app/src/main/AndroidManifest.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.kimgo.posefit">
 
     <!-- 摄像头权限 -->
     <uses-permission android:name="android.permission.CAMERA" />
@@ -34,7 +35,7 @@
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.category.LAUNCHER" />
+                <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>