Added sitemap, with filtering of disabled pages, removal of content from disabled pages, robots.txt generation pointing to the sitemap, adjustment of the Navbar generation to ignore disabled entries, e2e check for all pages including a non-blank title, content for body mods page

src/interfaces/site-layout.ts

@@ -1,4 +1,5 @@
 export interface navLink {
+    enabled?: boolean;
     navText: string;
     path?: string;
     pubpath?: string;