[FIX] website: allow "Search..." translation

Strings in python expression in 't-att-placeholder' are not translated
automatically.

opw-2467404

closes odoo/odoo#69559

X-original-commit: 8f8d55ee4e773884ab35e11bfd0573d7997f3ad3
Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>

addons/website/i18n/website.pot

@@ -5858,6 +5858,11 @@ msgid ""
 "picture, in just a few clicks."
 msgstr ""
 
+#. module: website
+#: model_terms:ir.ui.view,arch_db:website.website_search_box
+msgid "Search..."
+msgstr ""
+
 #. module: website
 #: model_terms:ir.ui.view,arch_db:website.s_features
 msgid "Second Feature"

addons/website/views/website_templates.xml

@@ -2296,7 +2296,8 @@ Sitemap: <t t-esc="url_root"/>sitemap.xml
 
 <template id="website_search_box" name="Website Searchbox">
     <div t-attf-class="input-group #{_classes}" role="search">
-        <input type="search" name="search" class="search-query form-control oe_search_box" t-att-placeholder="placeholder if placeholder else 'Search...'" t-att-value="search"/>
+        <t t-set="search_placeholder">Search...</t>
+        <input type="search" name="search" class="search-query form-control oe_search_box" t-att-placeholder="placeholder if placeholder else search_placeholder" t-att-value="search"/>
         <div class="input-group-append">
             <button type="submit" class="btn btn-primary oe_search_button" aria-label="Search" title="Search"><i class="fa fa-search"/></button>
         </div>