Enables building of APK with Optimised package name. en-gb. (#206)

Build with: ./gradlew assembleGenshinSpoofRelease
Using com.miHoYo.Yuanshen to enable device dependent features such as AI frame generation.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/206
Co-authored-by: Bix <xq9zp7f2@proton.me>
Co-committed-by: Bix <xq9zp7f2@proton.me>

src/android/app/build.gradle.kts

@@ -140,13 +140,21 @@ android {
         }
     }
 
+    android {
         flavorDimensions.add("version")
         productFlavors {
             create("mainline") {
-            isDefault = true
                 dimension = "version"
+                // No need to set applicationId here
+            }
+
+            create("genshinSpoof") {
+                dimension = "version"
+                applicationId = "com.miHoYo.Yuanshen"  // Correct use of applicationId inside the flavor block
             }
         }
+    }
+
 
     externalNativeBuild {
         cmake {