[FEATURE REQUEST] Make automatic discovery of the account

[jesmrec]

EPIC:

• [EPIC] New "Manage accounts" view #4314

The Manage accounts view looks like that:

The rounded arrow icon discovers the whole app by clicking on it. This is a process that can be automated to get rid of that icon and use another one instead.

The process of discovering the app should be done at the first login and should affect:

• Personal space (the only existing one in case of oC10)
• Spaces (in case of oCIS account)
• Shared jail (in case of oCIS account) -> BLOCKED due to [BUG] Deep links over shared files (oCIS) #4250

Discovery process to be done in background mode.

Once discovered, if new items are uploaded, will be discovered in browsing mode.

After finishing that migration process, the rounded arrow icon will be removed from the Manage accounts view.