src/openaiExplainPatch.js: enforce folding format

src/openaiExplainPatch.js

@@ -38,14 +38,9 @@ Desired format:
 ### Description
 <description_of_PR> // How does this PR change the codebase? What is the motivation for this change?
 
-<details>
-<summary><i>Changes</i></summary>
-
 ### Changes
 <list_of_changes> // Describe the main changes in the PR, organizing them by filename
 
-</details>
-
 ### Security Hotspots
 <list_of_security_hotspots> // Describe locations for possible vulnerabilities in the change, order by risk
 \n`,
@@ -156,5 +151,11 @@ Desired format:
     console.log(aiResponse.choices[0].message);
   }
 
-  return aiResponse.choices[0].message.content+`\n\n<!-- Generated by ${m} -->`;
+  var response = aiResponse.choices[0].message.content;
+
+  response = response.replaceAll("### Changes", "<details>\n<summary><i>Changes</i></summary>\n\n### Changes");
+  response = response.replaceAll("### Security Hotspots", "</details>\n\n### Security Hotspots");
+  response += `\n\n<!-- Generated by ${m} -->`;
+
+  return response;
 }