Fix line breaks being removed

Stop stripping paragraph tags as this is causing line breaks to be removed in the formatted body. Any double new line in the plain text is treated as a paragraph in rich text.

BUG: 458800

src/actionshandler.cpp

@@ -35,8 +35,6 @@ QString markdownToHTML(const QString &markdown)
     auto result = QString::fromStdString(html).trimmed();
 
     result.replace("<!-- raw HTML omitted -->", "");
-    result.replace("<p>", "");
-    result.replace("</p>", "");
 
     return result;
 }