fix(EuiPageTemplate): replace CSS.escape usage with string replace …

…to fix SSR support when `CSS` utils are unavailable

src/components/page_template/page_template.tsx

@@ -141,7 +141,7 @@ export const _EuiPageTemplate: FunctionComponent<EuiPageTemplateProps> = ({
     restrictWidth,
     paddingSize,
     // pageInnerId may contain colons that are parsed as pseudo-elements if not escaped
-    parent: `#${CSS.escape(pageInnerId)}`,
+    parent: `#${pageInnerId.replaceAll(':', '\\:')}`,
   });
 
   const innerPanelled = () => panelled ?? Boolean(sidebar.length > 0);