[FIX] mail: fix attachment alignment in chat window

This PR fixes an alignment issue for the attachments in the
chat windows. Indeed, those attachments were always displayed
to the left while it should be to the right in case it was
uploaded by the current user.

closes odoo/odoo#126355

Signed-off-by: Didier Debondt (did) <did@odoo.com>

addons/mail/static/src/core/common/attachment_list.xml

@@ -10,7 +10,9 @@
                 'ms-2 ps-4': isInChatWindowAndIsAlignedRight and !env.inComposer,
             }"
         >
-            <div class="d-flex flex-grow-1 flex-wrap mx-1" role="menu">
+            <div class="d-flex flex-grow-1 flex-wrap mx-1" t-att-class="{
+                'justify-content-end': isInChatWindowAndIsAlignedRight and !env.inComposer,
+            }" role="menu">
                 <div t-foreach="imagesAttachments" t-as="attachment" t-key="attachment.id" t-att-aria-label="attachment.filename"
                     class="o-mail-AttachmentImage d-flex position-relative flex-shrink-0 mw-100 mb-1 me-1"
                     t-att-title="attachment.name"
@@ -43,7 +45,9 @@
                     </div>
                 </div>
             </div>
-            <div class="d-flex flex-grow-1 flex-wrap mt-1 mx-1">
+            <div class="d-flex flex-grow-1 flex-wrap mt-1 mx-1" t-att-class="{
+                'justify-content-end': isInChatWindowAndIsAlignedRight and !env.inComposer,
+            }">
                 <div t-foreach="nonImagesAttachments" t-as="attachment" t-key="attachment.id"
                     class="o-mail-AttachmentCard d-flex rounded bg-300 mb-1 me-1 mw-100 overflow-auto"
                     t-att-class="{