erp5_core: html viewer: do not limit the width of the html

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/gadget_html_viewer.css.css

 div[data-gadget-url$="gadget_html_viewer.html"] {
-  max-width: 50em;
   display: block;
   word-wrap: break-word;
   font-family: 'Open Sans', Helvetica, Arial, sans-serif;
-  text-align: justify;
 }
 div[data-gadget-url$="gadget_html_viewer.html"] canvas,
 div[data-gadget-url$="gadget_html_viewer.html"] img,

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/gadget_html_viewer.less.txt

@@ -13,12 +13,12 @@
 
 
 div[data-gadget-url$="gadget_html_viewer.html"] {
-  max-width: 50em;
+  // max-width: 50em;
+  // text-align: justify;
 
   display: block;
   word-wrap: break-word;
   font-family: @sans-serif;
-  text-align: justify;
 
   canvas, img, iframe, svg {
     max-width: 100%;