docs: Updated permissions documentation with a note about Token Usage prerequiste (#1123)

Author: dfeddad

docs/resources/permissions.md

@@ -429,6 +429,8 @@ resource "databricks_permissions" "password_usage" {
 
 ## Token usage
 
+-> **Note** It is required to have at least 1 personal access token in the workspace before you can manage tokens permissions.
+
 Only [possible permission](https://docs.databricks.com/administration-guide/access-control/tokens.html) to assign to non-admin group is `CAN_USE`, where _admins_ `CAN_MANAGE` all tokens:
 
 ```hcl