- Vue confirmation modal implementation
- CSS tweaks for modal default height

- Separate cluster application UI state from server-side app status
- Use a state machine to determine cluster application next state
- Instead of using two variables to keep track of when an app
is installing or updating, just use the app status property and control
server-side and user events using the FSM service.

- Create installed property for cluster apps
- Pass installed property to the application_row component

When ingress application is installed, the cluster domain help text
is updated to indicate that ingress external ip can be used as the
cluster domain

This reverts merge request !24485

This fixes the application row component weird state when an
`updating` status is fetched, this causes apps to show as uninstalled
even though they are installed in the cluster.

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>