12.0 remove groups page (#6325)

* 12.0 remove groups page

* redirect groups to libraries page

frontend/src/components/toolbar/groups-toolbar.js

@@ -1,51 +0,0 @@
-import React from 'react';
-import PropTypes from 'prop-types';
-import { Utils } from '../../utils/utils';
-import { gettext } from '../../utils/constants';
-import CreateGroupDialog from '../../components/dialog/create-group-dialog';
-
-const propTypes = {
-  onCreateGroup: PropTypes.func.isRequired
-};
-
-class GroupsToolbar extends React.Component {
-
-  constructor(props) {
-    super(props);
-    this.state = {
-      isDialogOpen: false
-    };
-  }
-
-  toggleDialog = () => {
-    this.setState({
-      isDialogOpen: !this.state.isDialogOpen
-    });
-  };
-
-  render() {
-    return (
-      <>
-        {Utils.isDesktop() ? (
-          <div className="operation">
-            <button className="btn btn-secondary operation-item" onClick={this.toggleDialog}>
-              <i className="sf3-font-new-group1 sf3-font text-secondary mr-1"></i>{gettext('New Group')}
-            </button>
-          </div>
-        ) : (
-          <span className="sf2-icon-plus mobile-toolbar-icon" title={gettext('New Group')} onClick={this.toggleDialog}></span>
-        )}
-        {this.state.isDialogOpen &&
-          <CreateGroupDialog
-            toggleDialog={this.toggleDialog}
-            onCreateGroup={this.props.onCreateGroup}
-          />
-        }
-      </>
-    );
-  }
-}
-
-GroupsToolbar.propTypes = propTypes;
-
-export default GroupsToolbar;