fix: unordered list issue (calcom#23454)

* fix: uordered list issue

* changes

* revert

* Update EventMeta.tsx

---------

Co-authored-by: Anik Dhabal Babu <81948346+anikdhabal@users.noreply.github.com>

Author: bandhan-majumder

packages/lib/markdownToSafeHTML.ts

@@ -15,7 +15,7 @@ export function markdownToSafeHTML(markdown: string | null) {
 
   const safeHTML = sanitizeHtml(html);
 
-  const safeHTMLWithListFormatting = safeHTML
+  let safeHTMLWithListFormatting = safeHTML
     .replace(
       /<ul>/g,
       "<ul style='list-style-type: disc; list-style-position: inside; margin-left: 12px; margin-bottom: 4px'>"
@@ -26,5 +26,12 @@ export function markdownToSafeHTML(markdown: string | null) {
     )
     .replace(/<a\s+href=/g, "<a target='_blank' class='text-blue-500 hover:text-blue-600' href=");
 
+  // Match: <li>Some text </li><li><ul>...</ul></li>
+  // Convert to: <li>Some text <ul>...</ul></li>
+  safeHTMLWithListFormatting = safeHTMLWithListFormatting.replace(
+    /<li>([^<]+|<strong>.*?<\/strong>)<\/li>\s*<li>\s*<ul([^>]*)>([\s\S]*?)<\/ul>\s*<\/li>/g,
+    "<li>$1<ul$2>$3</ul></li>"
+  );
+
   return safeHTMLWithListFormatting;
 }

packages/lib/markdownToSafeHTMLClient.ts

@@ -15,7 +15,7 @@ export function markdownToSafeHTMLClient(markdown: string | null) {
 
   const safeHTML = DOMPurify.sanitize(html);
 
-  const safeHTMLWithListFormatting = safeHTML
+  let safeHTMLWithListFormatting = safeHTML
     .replace(
       /<ul>/g,
       "<ul style='list-style-type: disc; list-style-position: inside; margin-left: 12px; margin-bottom: 4px'>"
@@ -26,5 +26,12 @@ export function markdownToSafeHTMLClient(markdown: string | null) {
     )
     .replace(/<a\s+href=/g, "<a target='_blank' class='text-blue-500 hover:text-blue-600' href=");
 
+  // Match: <li>Some text </li><li><ul>...</ul></li> or
+  // Convert to: <li>Some text <ul>...</ul></li>
+  safeHTMLWithListFormatting = safeHTMLWithListFormatting.replace(
+    /<li>([^<]+|<strong>.*?<\/strong>)<\/li>\s*<li>\s*<ul([^>]*)>([\s\S]*?)<\/ul>\s*<\/li>/g,
+    "<li>$1<ul$2>$3</ul></li>"
+  );
+
   return safeHTMLWithListFormatting;
 }