[FIX] web: fix field selector style

The commit 797c87d3948c0bf815a8a587a36be9e5bedb35de misses
some diff. This commit contains the missing diff.

closes odoo/odoo#102206

X-original-commit: 59f4d112abf1eb175214614f9a84fc0c7a4af932
Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>
Signed-off-by: Michaël Mattiello <mcm@odoo.com>

addons/web/static/src/core/model_field_selector/model_field_selector.js

@@ -91,7 +91,7 @@ export class ModelFieldSelector extends Component {
             },
             {
                 closeOnClickAway: true,
-                popoverClass: "o-popover-no-arrow",
+                popoverClass: "o_popover_field_selector",
             }
         );
     }

addons/web/static/src/legacy/scss/model_field_selector.scss

@@ -1,5 +1,5 @@
 
-.o_field_selector {
+.o_legacy_field_selector {
     position: relative;
 
     > .o_field_selector_value {
@@ -41,7 +41,7 @@
         }
     }
 }
-.o_field_selector_popover {
+.o_legacy_field_selector_popover {
     $o-field-selector-arrow-height: 7px;
     @include o-position-absolute();
     z-index: 1051;