feat: remove chunking and switch it to a multi step process instead if tokens are too high

lua/chatgpt_nvim/config.lua

@@ -37,6 +37,9 @@ local prompt_blocks = {
     and a top-level key named 'files', which is a list of file changes. Each element in 'files' must be a mapping with:
     - 'path' for the file path relative to the project’s root directory.
     - either 'content' with a multiline string for new content, or 'delete: true' if the file should be deleted.
+    Important: dont use comments in the code to explain which steps you have taken.
+    Comments should just explain the code and not your thought process.
+    You can explain your thought process outside of the YAML.
 
     If more context is needed at any point before providing the final YAML, request it outside of the YAML.
     Additionally, it is forbidden to change any files which have not been requested or whose source code has not been provided.