Improve Email field validation error message to improve accessibility

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Even though this is a task think it could use test coverage for the change.

Added tests, please review

Tests look good

This could use an issue summary though for what the message was updated to and why. Current IS mentions accessibility issue but how does this now pass?

This is ok to add, but minor indeed. No need for an explicit usability review & signoff. Go for it!

In that case the change looks good and appears correctly.

+++ b/core/modules/field/tests/src/Functional/Email/EmailFieldTest.php
@@ -112,6 +112,15 @@ public function testEmailField() {
+    $value = 'abc.@in';

I'd rather this use 'foo' instead of 'abc' but it has not thrown any spelling errors.

Thanks everyone! Our UI is a wee bit better.

Automatically closed - issue fixed for 2 weeks with no activity.