update dep (#35)

enable code shrinking
remove gson

app/proguard-rules.pro

@@ -18,4 +18,9 @@
 
 # If you keep the line number information, uncomment this to
 # hide the original source file name.
-#-renamesourcefileattribute SourceFile
+#-renamesourcefileattribute SourceFile
+
+-keep class io.github.chinosk.gakumas.localify.GakumasHookMain {
+    <init>();
+    native <methods>;
+}