If a dashboard cannot be imported, no dashboards will

[davideschiera]

Version v0.2.

How to reproduce:

1. Create or edit a Sysdig data source
2. Import either "My dashboards" or "Shared dashboards". Note that you can reproduce this only with a corrupted dashboard (e.g. with a required property that is missing)

Expected result:

All dashboards but the corrupted one will be imported.

Actual result:

The entire import will fail.