fix: emit filetype event after update_statusline

To override/custom statusline
```
augroup fzf
  autocmd!
  autocmd  FileType fzf setlocal statusline=
augroup END
```

Author: phanen

lua/fzf-lua/fzf.lua

@@ -179,11 +179,11 @@ function M.raw_fzf(contents, fzf_cli_args, opts)
 
   -- fzf-tmux spawns outside neovim, don't set filetype/insert mode
   if not opts.is_fzf_tmux then
-    vim.bo.filetype = "fzf"
-
     local fzfwin = utils.fzf_winobj()
     if fzfwin then fzfwin:update_statusline() end
 
+    vim.bo.filetype = "fzf"
+
     -- See note in "ModeChanged" above
     -- NOTE: feedkeys hack not required since
     -- https://github.com/neovim/neovim/commit/3621af9b970c80d2a6ff36569d7495391599c334