consider pagination page when showing user index

src/routes/admin/users/+page.svelte

@@ -124,7 +124,7 @@
 					{#await currentPageUsersRequest then _}
 						{#each currentPageUsers as user, i}
 							<tr>
-								<td>{i + 1}</td>
+								<td>{i + 1 + userPage * usersPerPage}</td>
 								<td>
 									<Input type="text" bind:value={user.firstname} disabled={!user.edit} size="sm" />
 								</td>