Disable the external storages/big folders notice on account log-out

[SamuAlfageme]

Steps to reproduce

1. Add a new external storage/folder exceeding the size limit set on the client
2. Get notified in the account tab
3. Don't select any option and log-out

Expected behavior

The options should be gone after log-out, the same way the selective sync list is.

[ckamm]

PR #5826

[SamuAlfageme]

Still reproduces in Version 2.5.0alpha1 (build 9885) - my concerns from the comments on #5826 are still valid - e.g.

1. Wait till the buttons appear
2. Log out / disable the network on the OS
3. Click on Synchronize all
4. Log in / re-enable the connection on the host
5. Client lost the selection

I'm still voting for the "if we don't display the selective sync list at all, do not display these buttons until connection is established back either" (#5826 (comment))

[ckamm]

@SamuAlfageme My change only covered the case of edits to the selective sync list, not the "big folder" edit state :/

[SamuAlfageme]

Now, this is great stuff:

Closing here! 🤘

[ckamm]

Finally! :)