feat: add Journal server documentation to DocDialog

Introduce a new documentation set for Journal server functionality,
including a dropdown selector in the DocDialog to switch between
"directives" and "journal" documentation modes.

src/markdown/table.ts

@@ -28,7 +28,7 @@ function tableToCSV(headers: string[], rows: string[][]): string {
 }
 
 /** Spark table: first column header is a pure dice formula (d6, d20, etc.) */
-const SPARK_DICE_RE = /^d\d+$/i;
+const SPARK_DICE_RE = /^\d*d\d+$/i;
 
 export default function markedTable(): MarkedExtension {
   return {