Add metadata section to artist page

www/artists/get.php

@@ -59,8 +59,18 @@ catch(Exceptions\ArtistNotFoundException){
 		<?= Template::ArtworkList(artworks: $artworks) ?>
 
 		<? if($isAdminView){ ?>
-			<h2>Admin</h2>
-			<p><a href="<?= $artist->DeleteUrl ?>">Delete artist and reassign artwork</a></p>
+			<h2>Metadata</h2>
+			<p>
+				<a href="<?= $artist->DeleteUrl ?>">Delete artist</a>
+			</p>
+			<table class="admin-table">
+				<tbody>
+					<tr>
+						<td>Artist ID:</td>
+						<td><?= $artist->ArtistId ?></td>
+					</tr>
+				</tbody>
+			</table>
 		<? } ?>
 	</section>
 </main>