refactor(import/markdown): change renderer instead of applying an uglifier

src/services/import/markdown.ts

@@ -1,19 +1,27 @@
 "use strict";
 
 import { parse, Renderer, type Tokens } from "marked";
-import { minify as minifyHtml } from "html-minifier";
 
-// Keep renderer code up to date with https://github.com/markedjs/marked/blob/master/src/Renderer.ts.
-const renderer = new Renderer({ async: false });
-renderer.code = ({ text, lang, escaped }: Tokens.Code) => {
+class CustomMarkdownRenderer extends Renderer {
+
+    heading(data: Tokens.Heading): string {
+        return super.heading(data).trimEnd();
+    }
+
+    paragraph(data: Tokens.Paragraph): string {
+        return super.paragraph(data).trimEnd();
+    }
+
+    code({ text, lang, escaped }: Tokens.Code): string {
         if (!text) {
                 return "";
             }
 
             const ckEditorLanguage = getNormalizedMimeFromMarkdownLanguage(lang);
             return `<pre><code class="language-${ckEditorLanguage}">${text}</code></pre>`;
-};
-renderer.blockquote = ({ tokens }: Tokens.Blockquote) => {
+    }
+
+    blockquote({ tokens }: Tokens.Blockquote): string {
         const body = renderer.parser.parse(tokens);
 
         const admonitionMatch = /^<p>\[\!([A-Z]+)\]/.exec(body);
@@ -30,7 +38,12 @@ renderer.blockquote = ({ tokens }: Tokens.Blockquote) => {
         }
 
         return `<blockquote>\n${body}</blockquote>\n`;
-};
+    }
+
+}
+
+// Keep renderer code up to date with https://github.com/markedjs/marked/blob/master/src/Renderer.ts.
+const renderer = new CustomMarkdownRenderer({ async: false });
 
 import htmlSanitizer from "../html_sanitizer.js";
 import importUtils from "./utils.js";
@@ -46,9 +59,6 @@ function renderToHtml(content: string, title: string) {
     // h1 handling needs to come before sanitization
     html = importUtils.handleH1(html, title);
     html = htmlSanitizer.sanitize(html);
-    html = minifyHtml(html, {
-        collapseWhitespace: true
-    });
 
     return html;
 }