utils.js: improve the prompt, and simplify the replacements

src/utils.js

@@ -5,14 +5,14 @@ Desired format:
 ### Description
 <description_of_PR> // How does this PR change the codebase? What is the motivation for this change?
 
-### Changes
-<list_of_changes> // Describe the main changes in the PR, organizing them by filename
+### Possible Issues
+<list_of_issues> // Describe any other possible major non-security issues within this code. If there are none, omit this section.
 
 ### Security Hotspots
 <list_of_security_hotspots> // Describe locations for possible vulnerabilities in the change, ordered by risk. Do not include a vulnerability unless it is likely to present a real security risk. If there are none, omit this section.
 
-### Other Issues
-<list_of_issues> // Describe any other major issues with this code such as license incompatibilities introduced by a dependency. If there are none, omit this section.
+### Changes
+<list_of_changes> // Describe the main changes in the PR, organizing them by filename
 \n`
 
 export async function explainPatchHelper (patchBody, owner, repo, models, debug, getResponse) {
@@ -44,7 +44,6 @@ export async function explainPatchHelper (patchBody, owner, repo, models, debug,
   }
 
   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 ${model} -->`
+  response += `</details>\n\n<!-- Generated by ${model} -->`
   return response
 }