feat(FR-1493): remove non-functional admin and monitor roles from user management interfaces (#4305)

Resolves #4304 ([FR-1493](https://lablup.atlassian.net/browse/FR-1493))

## Summary
This PR removes non-functional admin and monitor roles from the user management interfaces to prevent confusion.
This PR applies the same changes as in lablup/backend.ai-control-panel#1150

## Changes
- Removed admin and monitor role options from the user list filter dropdown
- Removed admin and monitor roles from the permission range configuration in user settings modal

## Why these changes?
Admin and monitor roles are currently non-functional in the system but still visible in the UI, causing confusion for users who attempt to assign or filter by these roles. By removing these options, we streamline the user management workflow to only show functional roles:
- superadmin (full administrative privileges)
- user (standard user privileges)

[FR-1493]: https://lablup.atlassian.net/browse/FR-1493?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

Author: yomybaby

react/src/components/UserNodeList.tsx

@@ -192,18 +192,18 @@ const UserNodeList: React.FC<UserNodeListProps> = () => {
                     label: 'superadmin',
                     value: 'superadmin',
                   },
-                  {
-                    label: 'admin',
-                    value: 'admin',
-                  },
+                  // {
+                  //   label: 'admin',
+                  //   value: 'admin',
+                  // },
                   {
                     label: 'user',
                     value: 'user',
                   },
-                  {
-                    label: 'monitor',
-                    value: 'monitor',
-                  },
+                  // {
+                  //   label: 'monitor',
+                  //   value: 'monitor',
+                  // },
                 ],
               },
               {

react/src/components/UserSettingModal.tsx

@@ -39,8 +39,17 @@ type UserRole = {
   [key: string]: string[];
 };
 const permissionRangeOfRoleChanges: UserRole = {
-  superadmin: ['superadmin', 'admin', 'user', 'monitor'],
-  admin: ['admin', 'user', 'monitor'],
+  superadmin: [
+    'superadmin',
+    // 'admin',
+    'user',
+    //  'monitor'
+  ],
+  admin: [
+    // 'admin',
+    'user',
+    // 'monitor'
+  ],
 };
 
 interface UserSettingModalProps extends BAIModalProps {