Make the internal sled db public

src/database.rs

@@ -19,7 +19,7 @@ fn option_bytes_to_model<T: JdbModel>(bytes: Option<IVec>, id: u64) -> Result<T>
 }
 
 pub struct Database {
-    pub(crate) db: sled::Db,
+    pub db: sled::Db,
 }
 
 impl Database {