Allow more disk space for instances with more users

As stated in Atlassian Cloud Storage Policy documentation, the disk limit for Atlassian Cloud is set as 25GB for every instance.

Although this may be enough for small instances, which a few users, large instances with more users require more disk space, specially because there will be more users to create content.

As a customer, as I update my user tier, I would like to be entitled to more disk space.