Remove 'packages' from app since they wont be used for now

[guergana]

Removing references to data type package since this is unused code now.

Since package is a word commonly used for other means, I am not sure if is referring to the same thing and if i should remove the references also here:

• https://github.com/okfn/opendataeditor/blob/main/portal/content/docs/contributing/architecture.md?plain=1#L99 (Where it says 'Data package')
• this folder? https://github.com/okfn/opendataeditor/tree/main/server/endpoints/package , already removed the calls here: https://github.com/okfn/opendataeditor/pull/688/files#diff-37b91707d0dcc092dd908e0f726da6665c77de5dc10b9b86f1bd9807c685be8a don't know if it's referring to the same thing. @roll can you guide me a little bit? You can continue this PR if you wish, since you know the codebase much better than i do.

[cloudflare-workers-and-pages]

Deploying opendataeditor with    Cloudflare Pages

Latest commit:	06d1d24
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[roll]

I think it looks good