Move backup models to domain module

app/src/main/java/eu/kanade/tachiyomi/di/AppModule.kt

@@ -22,6 +22,7 @@ import eu.kanade.tachiyomi.network.NetworkHelper
 import eu.kanade.tachiyomi.source.AndroidSourceManager
 import io.requery.android.database.sqlite.RequerySQLiteOpenHelperFactory
 import kotlinx.serialization.json.Json
+import kotlinx.serialization.protobuf.ProtoBuf
 import nl.adaptivity.xmlutil.XmlDeclMode
 import nl.adaptivity.xmlutil.core.XmlVersion
 import nl.adaptivity.xmlutil.serialization.XML
@@ -106,6 +107,9 @@ class AppModule(val app: Application) : InjektModule {
                 xmlVersion = XmlVersion.XML10
             }
         }
+        addSingletonFactory<ProtoBuf> {
+            ProtoBuf
+        }
 
         addSingletonFactory { ChapterCache(app) }
         addSingletonFactory { CoverCache(app) }