fix(core) Remove {literal} smarty tag from button column

issue #6071

include/management/snapshot/class_SnapshotAttribute.inc

@@ -107,7 +107,8 @@ class SnapshotsAttribute extends OrderedArrayAttribute
         'title' => _('Restore'),
         'alt'   => _('Restore'),
         'class' => 'center'
-      ]
+      ],
+      FALSE
     ).$img;
     $nbicons++;
 

include/simpleplugin/attributes/class_SetAttribute.inc

@@ -546,7 +546,8 @@ class OrderedArrayAttribute extends SetAttribute
             'alt'             => _('Sort up'),
             'class'           => 'center',
             'formnovalidate'  => 'formnovalidate',
-          ]
+          ],
+          FALSE
         );
       } else {
         $img .= '<img src="images/empty.png" alt="" style="width:16px;"/>';
@@ -560,7 +561,8 @@ class OrderedArrayAttribute extends SetAttribute
             'alt'             => _('Sort down'),
             'class'           => 'center',
             'formnovalidate'  => 'formnovalidate',
-          ]
+          ],
+          FALSE
         );
       } else {
         $img .= '<img src="images/empty.png" alt="" style="width:16px;"/>';
@@ -576,7 +578,8 @@ class OrderedArrayAttribute extends SetAttribute
           'alt'             => _('Edit'),
           'class'           => 'center',
           'formnovalidate'  => 'formnovalidate',
-        ]
+        ],
+        FALSE
       );
     }
     $img .= $this->renderInputField(
@@ -587,7 +590,8 @@ class OrderedArrayAttribute extends SetAttribute
         'alt'             => _('Delete'),
         'class'           => 'center',
         'formnovalidate'  => 'formnovalidate',
-      ]
+      ],
+      FALSE
     );
 
     return  [$img, $nbicons];

include/simpleplugin/class_Attribute.inc

@@ -787,16 +787,16 @@ class Attribute
     return ($this->getValue() == $value);
   }
 
-  protected function renderInputField (string $type, string $name, array $attributes = []): string
+  protected function renderInputField (string $type, string $name, array $attributes = [], bool $smartyEscape = TRUE): string
   {
-    $input  = '{literal}<input type="'.htmlescape($type).'" '.
+    $input  = '<input type="'.htmlescape($type).'" '.
               'name="'.htmlescape($name).'" id="'.htmlescape($name).'"'.
               ($this->disabled ? ' disabled="disabled"' : '');
     foreach ($attributes as $label => $value) {
       $input .= ' '.$label.'="'.htmlescape($value).'"';
     }
-    $input .= '/>{/literal}';
-    return $input;
+    $input .= '/>';
+    return ($smartyEscape ? '{literal}'.$input.'{/literal}' : $input);
   }
 }