feat: also allow the config file without dot, give an error message at search replace if search was not found in file

lua/chatgpt_nvim/prompts.lua

@@ -289,6 +289,7 @@ local M = {
     - If multiple tools are needed, list them sequentially in the `tools` array.
     - Always run at least one tool (e.g., `readFile`, `editFile`, `executeCommand`), exept you have finished.
     - Always just include one yaml in the response with all the tools you want to run in that yaml.
+    - Never do write operations on a file which you have not read before.
     - The plugin will verify the `project_name` is correct before running any tools.
     - If the response grows too large, I'll guide you to break it into smaller steps.
   ]],