[BUGFIX]: Fix Help page linking error (openscd#1594)

Author: salvar3nga

packages/plugins/src/menu/Help.ts

@@ -9,6 +9,10 @@ import { newWizardEvent, Wizard } from '@openscd/open-scd/src/foundation.js';
 import { openSCDIcon } from '@openscd/open-scd/src/icons/icons.js';
 import { Directory } from '@openscd/open-scd/src/finder-list.js';
 
+const GITHUB_WIKI_LINK_PATTERN = /https:\/\/github\.com\/openscd\/open-scd\/wiki\/([^)]*)/g;
+const MD_LINK_TITLE_PATTERN ='([^\\]]*)';
+const HYPHEN_PATTERN = /-/g;
+
 function aboutBox(version: string) {
   return html`<div>
       <div style="display:flex">
@@ -43,19 +47,22 @@ async function getLinkedPages(path: string[]): Promise<Directory> {
   }
 
   const page = path[path.length - 1].replace(/ /g, '-');
-  const res = await fetch(`/public/md/${page}.md`);
+  const res = await fetch(`/openscd/public/md/${page}.md`);
   const md = await res.text();
+  const MD_LINK_REPLACEMENT = `<a style="cursor: help; color: var(--mdc-theme-primary)"  href="https://github.com/openscd/open-scd/wiki/$2" target="_blank" >$1</a>`
   const unlinkedMd = md.replace(
-    /\[([^\]]*)\]\(https:..github.com.openscd.open-scd.wiki.([^)]*)\)/g,
-    `<a style="cursor: help;" onclick="Array.from(event.target.closest('section').lastElementChild.children).find(child => child.text === '$2'.replace(/-/g, ' ')).click()">$1</a>`
+    new RegExp(`\\[${MD_LINK_TITLE_PATTERN}\\]\\(${GITHUB_WIKI_LINK_PATTERN.source}\\)`, 'g'),
+    MD_LINK_REPLACEMENT
   );
+
   const header = html`<div style="padding: 8px;">
     ${page === 'Home' ? aboutBox(edition.version) : html``}
     ${unsafeHTML(marked.parse(unlinkedMd))}
   </div>`;
   const entries = Array.from(
-    md.matchAll(/\(https:..github.com.openscd.open-scd.wiki.([^)]*)\)/g)
-  ).map(([_, child]) => child.replace(/-/g, ' '));
+    md.matchAll( new RegExp(`\\(${GITHUB_WIKI_LINK_PATTERN.source}\\)`, 'g'))
+
+  ).map(([_, child]) => child.replace(HYPHEN_PATTERN, ' '));
 
   return { path, header, entries };
 }