Add more size options to pagination (#23)

src/components/users.js

@@ -23,8 +23,13 @@ import {
   ReferenceField,
   SelectInput,
   regex,
+  Pagination,
 } from "react-admin";
 
+const UserPagination = props => (
+  <Pagination {...props} rowsPerPageOptions={[10, 25, 50, 100, 500, 1000]} />
+);
+
 const UserFilter = props => (
   <Filter {...props}>
     <BooleanInput source="guests" alwaysOn />
@@ -42,6 +47,7 @@ export const UserList = props => (
     filters={<UserFilter />}
     filterDefaultValues={{ guests: true, deactivated: false }}
     bulkActionButtons={false}
+    pagination={<UserPagination />}
   >
     <Datagrid rowClick="edit">
       <ReferenceField