Use temporary storage increase date

What does this MR do?

Part of https://gitlab.com/gitlab-org/gitlab/-/issues/227055. More info on the future can be found here: https://gitlab.com/gitlab-org/gitlab/-/issues/220371

This MR does two things:

1. We not enforce a limit when the temporary storage increase end date is in the future
2. We expose the status of the temporary storage increase, if it's currently enabled or not. This will make it easier for the UI and do the logic on its own if it's active or not.

Screenshots

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