[fix]: When the window was first created, filetype was empty.

lua/outline/view.lua

@@ -18,18 +18,22 @@ function View:setup_view(split_command)
  -- create a scratch unlisted buffer
  self.buf = vim.api.nvim_create_buf(false, true)
 
+ -- set filetype
+ vim.api.nvim_buf_set_option(self.buf, 'filetype', 'Outline')
+
  -- delete buffer when window is closed / buffer is hidden
  vim.api.nvim_buf_set_option(self.buf, 'bufhidden', 'delete')
+
  -- create a split
  vim.cmd(split_command)
 
- -- resize to a % of the current window size
- vim.cmd('vertical resize ' .. cfg.o.outline_window.width)
-
  -- get current (outline) window and attach our buffer to it
  self.win = vim.api.nvim_get_current_win()
  vim.api.nvim_win_set_buf(self.win, self.buf)
 
+ -- resize to a % of the current window size
+ vim.cmd('vertical resize ' .. cfg.o.outline_window.width)
+
  -- window stuff
  vim.api.nvim_win_set_option(self.win, 'spell', false)
  vim.api.nvim_win_set_option(self.win, 'signcolumn', 'no')
@@ -50,7 +54,6 @@ function View:setup_view(split_command)
  -- buffer stuff
  local tab = vim.api.nvim_get_current_tabpage()
  vim.api.nvim_buf_set_name(self.buf, 'OUTLINE_' .. tostring(tab))
- vim.api.nvim_buf_set_option(self.buf, 'filetype', 'Outline')
  vim.api.nvim_buf_set_option(self.buf, 'modifiable', false)
 
  if cfg.o.outline_window.show_numbers or cfg.o.outline_window.show_relative_numbers then