Update architecture image

Author: Blargian

docs/cloud/reference/02_architecture.md

@@ -6,11 +6,12 @@ description: 'This page describes the architecture of ClickHouse Cloud'
 doc_type: 'reference'
 ---
 
-import Architecture from '@site/static/images/cloud/reference/architecture.svg';
+import Image from '@theme/IdealImage';
+import Architecture from '@site/static/images/cloud/reference/architecture.png';
 
 # ClickHouse Cloud architecture
 
-<Architecture alt='ClickHouse Cloud architecture' class='image' />
+<Image img={Architecture} size='lg' alt='Cloud architecture'/>
 
 ## Storage backed by object store {#storage-backed-by-object-store}
 - Virtually unlimited storage