[FIX] web: fix settings boolean fields ux on mobile

closes odoo/odoo#83099

Signed-off-by: Kevin Baptiste <kba@odoo.com>

addons/web/static/src/scss/form_view.scss

@@ -749,6 +749,8 @@
     // Boolean
     .o_field_boolean {
         margin-right: $o-form-spacing-unit;
+        max-width: 20px!important;
+        padding-right: 0!important;
     }
 
     // Timezone widget warning