fix: usr: fixed conflict with `redmine_wiki_extensions` (fixes #60)
fix: usr: fixed conflict with `redmine_wiki_extensions` (fixes #60)

Fixed `fnlist` macro duplication when the `drawio_attach` macro is used
and the `redmine_wiki_extensions` plugin is installed.

mikitex70/redmine_drawio,mikitex70/redmine_drawio,mikitex70/redmine_drawio