(fix): 3379 - sweetAlerts2 ^7.0.0 update compatibility

[kieckhafer]

Fixes #3379

When we updated package.json, it bumped sweetAlerts2 to a ^7.0.0 version, which had breaking changes.

This PR follows their directions to add backwards compatibly to our Alerts.alert so the pop-up alerts continue to work as they did.

To Test:

• Find any pop-up alert (for instance, deleting a picture from the PDP), and click either the cancel or confirm buttons
• See that the action you select actually happens, instead of just closing the pop-up silently

[spencern]

@kieckhafer how can I test this, what should I be looking for?

[kieckhafer]

@spencern updated description with testing instructions. Basically all pop ups Alerts were just closing silently without actually doing what they were supposed to do. So just find a pop-up and make sure clicking the button does what it should instead of just closing the pop-up.

[duanhong169]

Same issue and @kieckhafer 's fix works.

[spencern]

Works