feat: some llms.txt improvements (#382)

Author: araujogui

src/generators/llms-txt/utils/buildApiDocLink.mjs

@@ -11,7 +11,7 @@ import { transformNodeToString } from '../../../utils/unist.mjs';
  */
 export const getEntryDescription = entry => {
   if (entry.llm_description) {
-    return entry.llm_description;
+    return entry.llm_description.trim();
   }
 
   const descriptionNode = entry.content.children.find(

src/utils/unist.mjs

@@ -16,8 +16,14 @@ export const transformNodeToString = node => {
       return `**${transformNodesToString(node.children)}**`;
     case 'emphasis':
       return `_${transformNodesToString(node.children)}_`;
-    default:
-      return node.children ? transformNodesToString(node.children) : node.value;
+    default: {
+      if (node.children) {
+        return transformNodesToString(node.children);
+      }
+
+      // Replace line breaks (\n) with spaces to keep text in a single line
+      return node.value?.replace(/\n/g, ' ') || '';
+    }
   }
 };