WIP: Allow increasing storage temporarily

What does this MR do?

Related to https://gitlab.com/gitlab-org/gitlab/-/issues/227053

This MR calls the mutation to increase the storage tempoarily and the different states of the usage quota page that come with that.

Page: http://localhost:3000/groups/gitlab-org/-/usage_quotas#storage-quota-tab

How to enable locally

# Enable feature flag
Feature.enable(:temporary_storage_increase)

# Faking storage statistics
n = Namespace.find_by(name: "gitlab-org")
n.root_storage_statistics&.destroy!
s = Namespace::RootStorageStatistics.new(storage_size: 10.megabytes)

# Faking storage limit
n.additional_purchased_storage_size = 15
n.save!

How to reset after setting temporary storage increase

n = Namespace.find_by(name: "gitlab-org")
n.update_attribute(:temporary_storage_increase_ends_on, nil)
n.save

Screenshots

When eligible	When activating	When activated
	temporary-storage-increase-loading

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team