fix: update hybrid android guide to fix hash mismatch issue (#291)

* fix: update hybrid android guide to fix hash mismatch issue

* update comment

---------

Co-authored-by: Eric Seidel <[email protected]>

src/content/docs/guides/hybrid-apps/android.mdx

@@ -94,6 +94,20 @@ versions of Flutter that Shorebird supports.
 In `app/build.gradle`, add the following:
 
 ```diff
+buildTypes {
+    release {
+        // ...
++        // The Dart compiler builds libapp.so directly (does not use clang),and already strips
++        // symbols. However when llvm-strip is run on libapp.so, the symbols are re-sorted
++        // causing the hash of the library to change (which can confuse Shorebird tools).
++        // This line tells gradle to skip the unnecessary llvm-strip step for libapp.so
++        // thus ensuring that the libapp.so that Shorebird sees is byte-identical to the one
++        // which ends up in the APK/AAR/AAB.
++        packaging.jniLibs.keepDebugSymbols.add("**/libapp.so")
+        // ...
+    }
+}
+
 dependencies {
     // ...
 +    releaseImplementation 'com.example.my_flutter_module:flutter_release:1.0'