fix(tableau.tpl.html): remove warning if no entry

Author: J9rem

tools/bazar/presentation/templates/tableau.tpl.html

@@ -268,5 +268,5 @@
     'wiki' => $this->wiki,
     'colors' => $colors,
     'icons' => $icons,
-    'columnswidth' => $sanitizedParams['columnswidth'],
+    'columnswidth' => $sanitizedParams['columnswidth'] ?? [],
 ]);