minor link css fixes

modules/custom/arlista/css/arlista.css

   justify-content: center;
   margin-top: 5rem;
 }
+
+form.arlista-manufacturer-edit-form > a {
+  display: block;
+  margin-bottom: 1rem;
+}
+
+div.custom-items-wrapper.link-container > ul > li > a {
+  display: block;
+  margin-top: 0.5rem;
+}

modules/custom/arlista/src/Form/Manufacturer/ManufacturerEdit.php

       '#weight' => 65,
     ];
 
-    $form['calculations']['prefix'] = ['#prefix' => '<br>'];
     if (!$manufacturer->isNew()) {
-      $form['items_wrapper'][]['calculation']['link'] = \Drupal\Core\Link::fromTextAndUrl(
+      $form['items_wrapper'][]['calculations']['link'] = \Drupal\Core\Link::fromTextAndUrl(
               'Kalkulációk szerkesztése',
               Url::fromRoute('arlista.manufacturer.calculations.list', [
                 'mid' => $mid]
               )
           )->toRenderable();
     }
-    $form['sheet_settings'][]['link'] = ['#prefix' => '<br>'];
+    
     if (!$manufacturer->isNew()) {
       $form['items_wrapper'][]['sheet_settings']['link'] = \Drupal\Core\Link::fromTextAndUrl(
               'Munkalapok szerkesztése',