Fix not being able to open Mermaid diagrams in a tab or save them

Author: chrarnoldus

webview-ui/src/components/common/MermaidBlock.tsx

@@ -266,6 +266,7 @@ export default function MermaidBlock({ code: originalCode }: MermaidBlockProps)
 				<MermaidButton containerRef={containerRef} code={code} isLoading={isLoading} svgToPng={svgToPng}>
 					<SvgContainer
 						onClick={handleClick}
+						ref={containerRef}
 						$isLoading={isLoading}
 						dangerouslySetInnerHTML={{ __html: svgContent }}
 					/>