Filters in the listing users page

@N.kishorekumar i can view use id filter has been added for currently logged in user.
seems ok .
moved to RTBC

Instead of uid, pls use username

patch not applying.

root@ubuntu:/var/www/html/d8# git apply -v 2700431-7.patch
Checking patch src/Form/CLUListingUsers.php...
Hunk #1 succeeded at 29 (offset 2 lines).
Hunk #2 succeeded at 46 (offset 2 lines).
Hunk #3 succeeded at 101 (offset 2 lines).
error: while searching for:
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $current_user = \Drupal::currentUser();
    $uids = $form_state->getValues()['table'];
    foreach ($uids as $delete_session_uid) {
      $user = user_load($delete_session_uid);
      if ($current_user->id() != $delete_session_uid && $delete_session_uid != 0) {
        db_delete('sessions')
          ->condition('uid', $delete_session_uid)
          ->execute();
        drupal_set_message(t('@username ( @userid ) user session has been ended.', [
          '@username' => $user->getAccountName(),
          '@userid' => $user->id(),
        ]));
      }
    }
  }

error: patch failed: src/Form/CLUListingUsers.php:95
error: src/Form/CLUListingUsers.php: patch does not apply

@N.kishorekumar, Username filter is working as per expected

Few minor changes needs to be updated.

1. Can we have button in right side of search field. Or else we should have space below.

+    $form['search_user'] = array(
+      '#type' => 'textfield',
+      '#title' => 'Username',
+    );
+    $form['search_submit'] = array(
+      '#type' => 'submit',
+      '#value' => 'Search',
+    );

2. Intendation problem exist here

+    $submit_value = $form_state->getValues()[op];
+    if ($submit_value == 'End sessions') {
+      if (empty($value_checked)) {
       $form_state->setErrorByName('clu_table', $this->t('Please select atleast one user to terminate the session.'));
     }
   }
+  }

+    if ($submit_value == 'End sessions') {
     $current_user = \Drupal::currentUser();
     $uids = $form_state->getValues()['table'];
     foreach ($uids as $delete_session_uid) {
@@ -112,6 +131,7 @@ class CLUListingUsers extends FormBase {
       }
     }
   }
+  }

3. reading op, needs to be read as a string.
+ $submit_value = $form_state->getValues()[op];

4. should be append with out changing existing query.

 +    if (isset($search_uname) && !empty($search_uname)) {
+      $query->condition('u.name', db_like($search_uname) . '%', 'LIKE');
+    }

5. line of code can be optimized in this case $search_uname

refer: https://www.drupal.org/coding-standards

Committed with few changes..