* Starting to make some progress on extmarks for prefixes * Finished up extmarks for multi-icons * Cleaned up update_prefix calls, added display highlights * remove highlight_one_row * Remove TODOs * stylua fixes * fixes for luacheck * Fixed whitespace to appease the stylua gods * fixed a couple nits from pr * Got tests passing with new highlighting functionality * Apply suggestions from code review Co-authored-by: Fabian David Schmidt <39233597+fdschmidt93@users.noreply.github.com> Co-authored-by: Fabian David Schmidt <39233597+fdschmidt93@users.noreply.github.com>