Decrypt ONS Records for external addresses

[Prophet-26]

The button to Decrypt ONS records disappears after an ONS record is added rendering it impossible to decrypt any more records.

[kylezs]

For more context, it should show.

[darcys22]

So it appears that the wallet in this case is working as designed. The ONS names that can be decrypted by the GUI wallet are those that belong to the wallet (ons name owner = current wallet address) and once those have been decrypted the wallet hides the decrypt form.

In this situation Prophet-26 has "Wallet A" which is owner of realsexycyborg and stream.loki. Prophet-26 would like to decrypt an ONS record owned by "Wallet B" (which also belongs to Prophet-26) however because "Wallet A" has already decrypted 2/2 ONS records that belong to "Wallet A" the decrypt form disappears.

After a quick investigation it seems like searching for an address that is not owned by the wallet will fail, so a quick removal of logic that hides the form will not be sufficient.

This potentially is a feature that could be beneficial to have and might not be too much effort to implement. But right now the search only checks the wallets internal list of addresses that it know owns.

@kylezs thoughts?