[PLT-2181] Change wording for deactivating a user from "Make Inactive" to "Deactivate" (#6106)

* change text to fix issue PLT-2181

* update strings

* update per review

webapp/components/admin_console/system_users/system_users_dropdown.jsx

@@ -263,7 +263,7 @@ export default class SystemUsersDropdown extends React.Component {
                     >
                         <FormattedMessage
                             id='admin.user_item.makeActive'
-                            defaultMessage='Make Active'
+                            defaultMessage='Activate'
                         />
                     </a>
                 </li>
@@ -284,7 +284,7 @@ export default class SystemUsersDropdown extends React.Component {
                     >
                         <FormattedMessage
                             id='admin.user_item.makeInactive'
-                            defaultMessage='Make Inactive'
+                            defaultMessage='Deactivate'
                         />
                     </a>
                 </li>