minor #41262 [Notifier] Improve the error on email channel sender (scuben)

This PR was merged into the 5.4 branch.

Discussion
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[Notifier] Improve the error on email channel sender

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      |no
| New feature?  |no
| Deprecations? |no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| License       | MIT

It took me too much time to figure out its not the header from but the envelope sender.

Commits
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1779917633 [Notifier] Improve the error on email channel sender

Author: fabpot

Channel/EmailChannel.php

@@ -57,7 +57,7 @@ public function notify(Notification $notification, RecipientInterface $recipient
         if ($email instanceof Email) {
             if (!$email->getFrom()) {
                 if (null === $this->from) {
-                    throw new LogicException(sprintf('To send the "%s" notification by email, you should either configure a global "from" or set it in the "asEmailMessage()" method.', get_debug_type($notification)));
+                    throw new LogicException(sprintf('To send the "%s" notification by email, you should either configure a global "from" header, set a sender in the global "envelope" of the mailer configuration or set a "from" header in the "asEmailMessage()" method.', get_debug_type($notification)));
                 }
 
                 $email->from($this->from);