[IMP] web: remove title from attachment image

This commit remove the title on the attachment image widget
when not in debug mode.
The title gave the name of the file and wasn't really necessary
as it is rather a technical info.

task 3343366

closes odoo/odoo#123895

Signed-off-by: Mathieu Duckerts-Antoine <dam@odoo.com>

addons/web/static/src/views/fields/attachment_image/attachment_image_field.xml

@@ -3,7 +3,7 @@
 
     <t t-name="web.AttachmentImageField" owl="1">
         <div class="o_attachment_image">
-            <img t-if="props.record.data[props.name]" t-attf-src="/web/image/{{ props.record.data[props.name][0] }}?unique=1" t-att-title="props.record.data[props.name][1]" alt="Image" />
+            <img t-if="props.record.data[props.name]" t-attf-src="/web/image/{{ props.record.data[props.name][0] }}?unique=1" t-att-title="!!env.debug and props.record.data[props.name][1]" alt="Image" />
         </div>
     </t>