build: Add android namespace

android/app/build.gradle

@@ -31,6 +31,7 @@ if (keystorePropertiesFile.exists()) {
 
 android {
     compileSdkVersion 34
+    namespace = "chat.fluffy.fluffychat"
 
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'

android/app/src/main/AndroidManifest.xml

@@ -1,6 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           xmlns:tools="http://schemas.android.com/tools"
-    package="chat.fluffy.fluffychat" android:installLocation="auto">
+    android:installLocation="auto">
     <!-- io.flutter.app.FlutterApplication is an android.app.Application that
          calls FlutterMain.startInitialization(this); in its onCreate method.
          In most cases you can leave this as-is, but you if you want to provide