Update ac.tdwg.org to make use of new TDWG branding

[peterdesmet]

https://www.tdwg.org now makes us of Jekyll and the new TDWG branding (see https://github.com/tdwg/website/pull/479). The Audubon Core satellite website (https://ac.tdwg.org) does not and should be updated. Luckily it already makes use of Jekyll, so it is mainly changing theme and some layouts.

• [x] Update _config.yml to e.g. make use of remote_theme: tdwg/petridish
• [x] Move navigation to _data
• [x] Verify/update frontmatter of all pages
• [x] Test site locally
• [ ] Once dwc.tdwg.org and ac.tdwg.org are updated, remove redirect for https://www.tdwg.org/theme/* (@MattBlissett)

I am happy to implement all this, but can't promise when.

[baskaufs]

Hi @peterdesmet . Sorry it took a while to get everything straight with the new document versions, but they are all in place and working as far as I can tell.

While you are doing this, I want to convert all of the old AC versions to the same file structure that DwC uses. Because of their directory structure, the DwC version URLs will pick up the same styling as the current version: https://dwc.tdwg.org/list/2021-03-29

The AC ones are stupid and look like this: https://github.com/tdwg/ac/blob/master/docs/termlist-2022-02-23.md

I don't think this will have any impact on the changes you are making, I just need to take the time to make all of the subfolders and rename the Markdown files to index.md or whatever I have in the DwC repo.

[edwbaker]

@MattBlissett - could you give an update on this? (last checkbox of original post)