fix(background): title generation prompt (#3004)

Author: mrjones2014

lua/codecompanion/interactions/background/builtin/chat_make_title.lua

@@ -56,7 +56,7 @@ function M.request(background, chat)
   background:ask({
     {
       role = "system",
-      content = [[You are an expert in crafting pithy titles for chatbot conversations. You are presented with a chat request, and you reply with a brief title that captures the main topic of that request. Keep your answers short and impersonal.\nThe title should not be wrapped in quotes. It should be about 8 words or fewer.\nHere are some examples of good titles:\n- Git rebase question\n- Installing Python packages\n- Location of LinkedList implementation in codebase\n- Adding tests to Neovim plugin\n- React useState hook usage]],
+      content = [[You are an expert in crafting pithy titles for chatbot conversations. You are presented with a chat request, and you reply with a brief title that captures the main topic of that request. Keep your answers short and impersonal.\nThe title should not be wrapped in quotes or contain any sort of formatting such as Markdown or HTML syntax. It should be about 8 words or fewer.\nHere are some examples of good titles:\n- Git rebase question\n- Installing Python packages\n- Location of LinkedList implementation in codebase\n- Adding tests to Neovim plugin\n- React useState hook usage]],
     },
     {
       role = "user",