[IMP] web : Open mail sender widget in a new window

This PR aims to change the target of the email widget to _blank. Indeed depending on
your mail provider, it can open the mail editor in your current tab and might not be
practical for the user if he needs information that was present on the previous tab
to compose the mail.
task-3324948

closes odoo/odoo#121277

Signed-off-by: Luca Vitali <luvi@odoo.com>

addons/web/static/src/views/fields/email/email_field.xml

@@ -27,6 +27,7 @@
                 t-if="props.record.data[props.name]"
                 t-att-href="'mailto:'+props.record.data[props.name]"
                 class="ms-3 d-inline-flex align-items-center"
+                target="_blank"
             >
                 <i class="fa fa-envelope" data-tooltip="Send Email" aria-label="Send Email"></i>
             </a>

addons/web/static/tests/views/fields/email_field_tests.js

@@ -75,6 +75,12 @@ QUnit.module("Fields", (hooks) => {
             "should have rendered the email button as a link with correct classes"
         );
         assert.hasAttrValue(emailBtn, "href", "mailto:yop", "should have proper mailto prefix");
+        assert.hasAttrValue(
+            emailBtn,
+            "target",
+            "_blank",
+            "should have target attribute set to _blank"
+        );
 
         // change value in edit mode
         await editInput(target, ".o_field_email input[type='email']", "new");