Extend order info to all transactions

[valentino-sm]

1. Fix brief order view from user.
2. Save order_info to worker.
3. Save worker.order_info in __order_transaction to db instead of empty row.
4. Show order_info in full order view for admin.
5. Hide notes if empty.

Don't use if you are not sure what you are doing.

[valentino-sm]

2. Probably we should extend db.users for order_info. Another option is loading from last transaction when worker starts. There is shipping_address in addition =D

[Steffo99]

While this is a clever idea (I never thought about storing state variables in the worker class while developing greed!), I don't really see the need to add order_info to purchase transactions, as it would be redundant and possibly inaccurate...

I'm not sure about this PR 🤔

[valentino-sm]

I know this is some kind of hack but I just need the way to view order_info in-app admin-orders directly without looking into transactions.

[Steffo99]

I think I won't merge this, as it's a bit of an hack, but I'll keep your branch, since it's a good reference for implementing that feature :)

Thanks for the contribution anyways!