feat(finder): Improve file search

- Sort chat files now by last access with the most recent at the top

Author: frankroeder

lua/parrot/chat_handler.lua

@@ -955,7 +955,7 @@ function ChatHandler:chat_finder()
       actions["default"] = actions["ctrl-t"]
     end
 
-    fzf_lua.fzf_exec("rg --no-heading topic --type=md", {
+    fzf_lua.fzf_exec("rg --no-heading '# topic:' --type=md --sortr=accessed", {
       cwd = self.options.chat_dir,
       prompt = "Chat selection ❯",
       fzf_opts = self.options.fzf_lua_opts,