Resolve "Configuring Prometheus alerts causes Cluster Install page to display error message"

What does this MR do?

Adds a new UPDATING state to the application_row.vue component, this is due to the fact that when adding alerts to prometheus, the helm chart enters this particular state and since we don't consider it in the aforementioned component we enter a situation where suddenly prometheus is not installed, even though it is

What are the relevant issue numbers?

#7493 (closed)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Tests added for this feature/bug
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the database guides
• EE specific content should be in the top level /ee folder
• For a paid feature, have we considered GitLab.com plans, how it works for groups, and is there a design for promoting it to users who aren't on the correct plan?

Closes #7493 (closed)

CE Backport

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/22408