[REF] mail: ComposerSuggestedRecipientList, review and simplify scss

Part of the overall v16 SCSS optimization/restyle, task-2704984

task-2781992

closes odoo/odoo#87452

Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>

addons/mail/static/src/components/composer_suggested_recipient_list/composer_suggested_recipient_list.scss

@@ -1,3 +0,0 @@
-.o_ComposerSuggestedRecipientList {
-    margin-bottom: map-get($spacers, 2);
-}

addons/mail/static/src/components/composer_suggested_recipient_list/composer_suggested_recipient_list.xml

@@ -2,7 +2,7 @@
 <templates xml:space="preserve">
     <t t-name="mail.ComposerSuggestedRecipientList" owl="1">
         <t t-if="thread">
-            <div class="o_ComposerSuggestedRecipientList" t-attf-class="{{ className }}" t-ref="root">
+            <div class="o_ComposerSuggestedRecipientList mb-2" t-attf-class="{{ className }}" t-ref="root">
                 <t t-foreach="state.hasShowMoreButton ? thread.suggestedRecipientInfoList : thread.suggestedRecipientInfoList.slice(0,3)" t-as="recipientInfo" t-key="recipientInfo.localId">
                     <ComposerSuggestedRecipient
                         suggestedRecipientInfoLocalId="recipientInfo.localId"