fix(wikilinks): proper escaping of pipe character in wikilinks inside tables (#1040)

Author: saberzero1

quartz/plugins/transformers/ofm.ts

@@ -188,7 +188,8 @@ export const ObsidianFlavoredMarkdown: QuartzTransformerPlugin<Partial<Options>
             const [raw]: (string | undefined)[] = capture
             let escaped = raw ?? ""
             escaped = escaped.replace("#", "\\#")
-            escaped = escaped.replace("|", "\\|")
+            // escape pipe characters if they are not already escaped
+            escaped = escaped.replace(/((^|[^\\])(\\\\)*)\|/g, "$1\\|")
 
             return escaped
           })