ServiceAccounts: Add token view for Service Accounts (#45013)

* fix SA creation scope

* add writer action to SA fixed role

* ServiceAccounts: Add token table to SA detail page

* ServiceAccounts: Allow deletion of tokens from token table

* refactor service account page

* avoid using store for delete

pkg/services/serviceaccounts/manager/roles.go

@@ -18,6 +18,10 @@ func RegisterRoles(ac accesscontrol.AccessControl) error {
 					Action: serviceaccounts.ActionRead,
 					Scope:  serviceaccounts.ScopeAll,
 				},
+				{
+					Action: serviceaccounts.ActionWrite,
+					Scope:  serviceaccounts.ScopeAll,
+				},
 				{
 					Action: serviceaccounts.ActionCreate,
 				},