Revamped alerts GUI

The alerts GUI has undergone a major UX upgrade. While working on a query for an alert, you can now see the live results. This will make it easier to fine tune it.

The actions to take (send emails, call webhooks) have moved to a second tab to clear up the screen. You can still send alerts to any email account, even if they are not ShadowTrackr users.

There is also a third tab where you can select the fields you want to include in the results that are sent. The default fields are preselected. It was possible to do this before with advanced query syntax, but seeing which fields are available and ticking the boxes for the ones you want is just much easier.

The email format has changed a bit and should allow you to better interpret the alert context.

Some of these improvements, like the email format and third tab to select output fields, have been added to the reports GUI as well.