Update dependency svelte-exmarkdown to v5

Author: renovate[bot]

package.json

@@ -47,7 +47,7 @@
 		"shiki": "^3.2.1",
 		"svelte": "^5.23.2",
 		"svelte-check": "^4.1.5",
-		"svelte-exmarkdown": "^4.0.3",
+		"svelte-exmarkdown": "^5.0.0",
 		"svelte-meta-tags": "^4.2.0",
 		"svelte-persisted-store": "^0.12.0",
 		"svelte-sonner": "^0.3.28",