Update workspace storage docs to mention DWO's storage strategy attribute

[AObuchow]

Is your enhancement related to a problem? Please describe

The Che documentation on requesting persistent workspace storage currently mentions mounting volumes and PVCs.

However, there is no mention of DWO's ability to automatically provision storage by creating a PVC, which can be configured on a per-workspace basis with the controller.devfile.io/storage-type attribute.

Describe the solution you'd like

The Che documentation should explain the usage of the controller.devfile.io/storage-type attribute.

Describe alternatives you've considered

We may not want to document this attribute, as it is "internal" (part of DWO's API, not Che) and Che already configures this attribute from the user dashboard.

Furthermore, users are most likely going to configure persistent storage for their workspaces using the Dashboard UI and not by modifying their devfile or devworkspace.

Additional context

No response

[che-bot]

Issues go stale after 180 days of inactivity. lifecycle/stale issues rot after an additional 7 days of inactivity and eventually close.

Mark the issue as fresh with /remove-lifecycle stale in a new comment.

If this issue is safe to close now please do so.

Moderators: Add lifecycle/frozen label to avoid stale mode.

[deerskindoll]

/remove-lifecycle stale

[AObuchow]

/remove-lifecycle stale

[ibuziuk]

Reopening for clarification, is it really completed cc: @deerskindoll @AObuchow

[deerskindoll]

Reopening for clarification, is it really completed cc: @deerskindoll @AObuchow

not completed, I removed the lifecycle/stale label to prevent the bot from closing the issue again

[AObuchow]

@ibuziuk: @deerskindoll is correct, this has not been resolved. Though it's still debatable whether this is worth documenting:

We may not want to document this attribute, as it is "internal" (part of DWO's API, not Che) and Che already configures this attribute from the user dashboard.

Furthermore, users are most likely going to configure persistent storage for their workspaces using the Dashboard UI and not by modifying their devfile or devworkspace.