[IMP] base: improve source term

Use the "There are" form when followed by plural

closes odoo/odoo#30731

Signed-off-by: Martin Trigaux (mat) <mat@odoo.com>

odoo/addons/base/i18n/base.pot

@@ -20215,7 +20215,7 @@ msgstr ""
 
 #. module: base
 #: model_terms:ir.ui.view,arch_db:base.base_partner_merge_automatic_wizard_form
-msgid "There is no more contacts to merge for this request..."
+msgid "There are no more contacts to merge for this request"
 msgstr ""
 
 #. module: base

odoo/addons/base/wizard/base_partner_merge_views.xml

@@ -16,7 +16,7 @@
                 <form string='Automatic Merge Wizard'>
                     <sheet>
                         <group attrs="{'invisible': [('state', '!=', 'finished')]}" col="1">
-                            <h2>There is no more contacts to merge for this request...</h2>
+                            <h2>There are no more contacts to merge for this request</h2>
                             <button name="%(action_partner_deduplicate)d" string="Deduplicate the other Contacts" class="oe_highlight" type="action"/>
                         </group>
                         <p class="oe_grey" attrs="{'invisible': [('state', '!=', ('option'))]}">