Display custom storage quota in account section

[mbommerez]

Overarching user needs / context:

• Currently we can increase users' allowed storage quota from admin.storage, but there is no way for users to check on their current quota.

• If users have a 2 TiB quota, their account will still say

  Storage: 0.9 TiB of 1 TiB used

  because the "1 TiB" is currently hardcoded

Scope of this ticket:

• This ticket is solely about updating the copy to reflect the amount of storage attributed to everyone individually.
• The scope does not include changing the scale of the "progress bar" that visually reflects the proportion of storage used compared to your quota.

Acceptance criteria:

• When we update a user's user tag for allowed storage, the amount should be visible in their account section.
• The amount of bytes stored in the DB should be displayed as amount in TiB