[FIX] mail: fix popup using partner when custome is more user-friendly

addons/mail/static/src/js/chatter_composer.js

@@ -155,7 +155,7 @@ var ChatterComposer = composer.BasicComposer.extend({
                         default_name: parsed_email[0],
                         default_email: parsed_email[1],
                     },
-                    title: _t("Please complete partner's informations"),
+                    title: _t("Please complete customer's informations"),
                     disable_multiple_selection: true,
                 }).open();
                 dialog.on('closed', self, function () {

addons/mail/static/src/js/many2many_tags_email.js

@@ -81,7 +81,7 @@ var FieldMany2ManyTagsEmail = M2MTags.extend({
                 res_model: self.field.relation,
                 res_id: resID,
                 context: self.record.context,
-                title: _t("Please complete partner's informations and Email"),
+                title: _t("Please complete customer's informations and email"),
                 on_saved: function (record) {
                     if (record.data.email) {
                         validPartners.push(record.res_id);