ZEVA 2 - Vehicle Suppliers - Add Users Tab to Existing Vehicle Supplier

**Describe the task**
Add a new Users tab to the Existing Vehicle Supplier page. Currently, the Existing Vehicle Supplier page contains two tabs: Supplier Information, Transactions. This task adds a third tab: Users
The Users tab should allow users to: View existing users in a standard data table.
The table should use the application’s standard table component and include search fields for each column.
The table should include the following columns: Name, Roles, Status

**Purpose**
Provide a dedicated location for managing users associated with a Vehicle Supplier.

**Acceptance Criteria**
- [ ] A new Users tab is added to the Existing Vehicle Supplier page.
- [ ] The tab is displayed alongside the existing tabs.
- [ ] Existing users are displayed in the application’s standard table component.
- [ ] The table includes the following columns: Name, Roles, Status
- [ ] Each column includes the standard search/filter field.
- [ ] The table styling and behavior are consistent with the application’s standard table component.
- [ ] The layout and visual styling match the approved [Figma design.](https://www.figma.com/design/7Qgou3rxcHHk5qbmD9538x/ZEVA-2?node-id=3231-9403&t=xpdupCduTye12Tml-1)