Add ability to toggle whether to show locked users

This is almost copy of https://github.com/Awesome-Technologies/synapse-admin/pull/573 PR,
authored by @huw1990

src/synapse/dataProvider.ts

@@ -491,7 +491,7 @@ function getSearchOrder(order: "ASC" | "DESC") {
 const dataProvider: SynapseDataProvider = {
   getList: async (resource, params) => {
     console.log("getList " + resource);
-    const { user_id, name, guests, deactivated, search_term, destination, valid } = params.filter;
+    const { user_id, name, guests, deactivated, locked, search_term, destination, valid } = params.filter;
     const { page, perPage } = params.pagination;
     const { field, order } = params.sort;
     const from = (page - 1) * perPage;
@@ -504,6 +504,7 @@ const dataProvider: SynapseDataProvider = {
       destination: destination,
       guests: guests,
       deactivated: deactivated,
+      locked: locked,
       valid: valid,
       order_by: field,
       dir: getSearchOrder(order),