Edit and Delete Actions

[mgiota]

This is a sub-issue of #119100

Acceptance criteria

• Edit rule
• Delete rule

You can check out how to embed the create rule flyout within any kibana plugin. Similarly you can embed the edit rule flyout:

triggersActionsUi.getEditAlertFlyout({
   initialRule: currentRule,
   onClose,
   onSave,
 }),

[katrin-freihofner]