[IMP] web_editor: Reduce interline in web editor html lists

addons/web_editor/static/src/less/web_editor.backend.less

@@ -12,6 +12,9 @@
         a, a:hover {
             color: initial;
         }
+        ul > li > p {
+            margin: 0px;
+        }
     }
     .o_readonly {
         min-height: 1em;
@@ -19,6 +22,9 @@
         margin: 0;
         padding: 0;
         border: 0;
+        ul > li > p {
+            margin: 0px;
+        }
     }
 }
 .oe_form_field_html iframe {