don't help user format markdown if content already contains correct empty line syntax

src/lib/utils/post-utils.ts

@@ -24,10 +24,16 @@ export function getTextColorForBackground(rgb: string): string {
 export const formatMarkdown = (content: string): string => {
   let md = content;
   if (md) {
-    // Replace single newline with "/n /n" if followed by a newline
-    md = md.replace(/\n(?=\n)/g, '\n \n');
-    // Replace single newline with double newline if between two characters
-    md = md.replace(/\n(?=\S)/g, '\n\n');
+    // Check if the content already contains valid Markdown patterns
+    const alreadyFormattedPattern = /\n \n/;
+
+    // help the user by formatting the content if it's not already formatted
+    if (!alreadyFormattedPattern.test(md)) {
+      // Replace single newline with "/n /n" if followed by a newline
+      md = md.replace(/\n(?=\n)/g, '\n \n');
+      // Replace single newline with double newline if between two characters
+      md = md.replace(/\n(?=\S)/g, '\n\n');
+    }
   }
   return md;
 };