Allow Users to see Associated Order errors (like Payment ones) on the Subscription / Installment page

[cesartalves]

Currently, if the User notices that the Subscription failed (say because of a Payment), they will need to:

• Click on the Subscription
• Check that the last Installment Failed
• Find the corresponding Order in the Orders tab
• Go to the Order
• Go to the Payment Tab
• Find the corresponding Payment and error

This requires some degree of domain knowledge, and I was wondering whether we couldn't somehow show the last payment error on the Installment tab, like a "shortcut" for users with less familiarity with Solidus:

Does this make sense?

[stale]

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