Refactor Dropzone preview structure for better container organization and added button attributes.

Author: Carlos Hernández

src/Dropzone/templates/form_theme.html.twig

@@ -10,6 +10,7 @@
                 {{- translation_domain is same as(false) ? attr.placeholder : attr.placeholder|trans({}, translation_domain) -}}
             {%- endif -%}
         </div>
+
         <div class="dropzone-preview-container" data-symfony--ux-dropzone--dropzone-target="previewContainer">
             <div class="dropzone-preview" data-symfony--ux-dropzone--dropzone-target="preview" style="display: none">
                 <div class="dropzone-preview-image" style="display: none"
@@ -19,9 +20,8 @@
                         data-symfony--ux-dropzone--dropzone-target="previewClearButton"
                         data-symfony--ux-dropzone--dropzone-filename-param="0"
                         data-action="symfony--ux-dropzone--dropzone#clear"
-                ></button>
+                 ></button>
             </div>
         </div>
-
     </div>
 {%- endblock %}