fix(preview): update buffer previewer to upstream changes

neovim/neovim#19931 removed `_get_hl_from_capture(id)` since captures are now implicitly mapped to highlight groups with the same name.

lua/telescope/builtin/__files.lua

@@ -410,7 +410,14 @@ files.current_buffer_fuzzy_find = function(opts)
  end,
  })
  for id, node in query:iter_captures(root, opts.bufnr, 0, -1) do
- local hl = highlighter_query:_get_hl_from_capture(id)
+ local hl
+ -- update to changes on Neovim master, see https://github.com/neovim/neovim/pull/19931
+ -- TODO(clason): remove when dropping support for Neovim 0.7
+ if vim.fn.has "nvim-0.8" then
+ hl = query.captures[id]
+ else
+ hl = highlighter_query:_get_hl_from_capture(id)
+ end
  if hl and type(hl) ~= "number" then
  local row1, col1, row2, col2 = node:range()