N°7984 - Change ? for field description (tooltip) by ⓘ in console and portal

Change escaped characters for their UTF-8 equivalent

css/common/utils/helpers/_text-decoration.scss

@@ -4,7 +4,7 @@
  */
 
 /* SCSS variables */
-$common-has-description--content: "?" !default;
+$common-has-description--content: "ⓘ" !default;
 $common-has-description--padding-left: $common-spacing-200 !default;
 $common-has-description--color: $common-color-grey-600 !default;
 $common-has-description--font-size: 0.7em !default; /* Font size is em on purpose as we want it to be proportional to its context */

datamodels/2.x/itop-portal-base/portal/public/css/portal.scss

@@ -1140,13 +1140,14 @@ table .group-actions .item-action-wrapper .panel-body > p:last-child{
 
 .form_field_label > .control-label[data-tooltip-instantiated="true"] {
 	&::after {
-		content: "?";
+		content: "ⓘ";
 		padding-left: 3px;
 		vertical-align: top;
 
 		cursor: pointer;
 		color: $gray;
 		font-size: 0.85em;
+    font-weight: 200;
 	}
 }
 .form_field .form_mandatory .control-label:after{