DOCSP-46826: Add dashboard icon info-v8.0-backport (828) (#897)

# Backport

This will backport the following commits from `master` to `v8.0`:
- [DOCSP-46826: Add dashboard icon info
(#828)](10gen/docs-ops-manager#828)

<!--- Backport version: 9.6.0 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

Co-authored-by: Nora Reidy <[email protected]>

Author: jwilliams-mongo

source/data-explorer.txt

@@ -78,6 +78,15 @@ Interact with Data in the |mms| UI
 
 .. include:: /includes/fact-access-de.rst
 
+From the :guilabel:`Data` tab, you can view a list of databases in
+the left panel. You can also view the following information about your
+deployment in the top right corner of your display:
+
+- :guilabel:`Data Size`: The total byte size of your document data stored across
+  all databases, including system databases.
+- :guilabel:`Status`: A bell icon that displays deployment alerts 
+  and a backup icon that displays the status of recent backup tasks.
+
 Manage Your Data in the |mms| UI
 ----------------------------------------