refactor(sdk): Make base_client field of Client private

crates/matrix-sdk/src/client/mod.rs

@@ -145,7 +145,7 @@ pub(crate) struct ClientInner {
     /// The underlying HTTP client.
     http_client: HttpClient,
     /// User session data.
-    pub(crate) base_client: BaseClient,
+    base_client: BaseClient,
     /// The Matrix versions the server supports (well-known ones only)
     server_versions: OnceCell<Box<[MatrixVersion]>>,
     /// Locks making sure we only have one group session sharing request in

crates/matrix-sdk/src/encryption/mod.rs

@@ -904,7 +904,7 @@ mod tests {
             )
             .build_sync_response();
 
-        client.inner.base_client.receive_sync_response(response).await.unwrap();
+        client.base_client().receive_sync_response(response).await.unwrap();
 
         let room = client.get_joined_room(room_id).expect("Room should exist");
         assert!(room.is_encrypted());