docs: updates websub_pending entry in sub.php (#9439)

* Update websub_pending entry in sub.php

Translated the websub_pending attribute entry in sub.php in german

* make fix-all

---------

Co-authored-by: Alexandre Alapetite <alexandre@alapetite.fr>

README.fr.md

@@ -239,7 +239,7 @@ Voir le [dépôt dédié à ces extensions](https://github.com/FreshRSS/Extensio
 | Azərbaycanca (az) | ￭￭￭￭￭￭￭￭￭･ 99% | [contribuer](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Faz+%2F%28TODO%7CDIRTY%29%24%2F) |
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README.md

@@ -135,7 +135,7 @@ See the [repository dedicated to those extensions](https://github.com/FreshRSS/E
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app/i18n/de/sub.php

@@ -266,7 +266,7 @@ return array(
 		'validator' => 'Gültigkeit des Feeds überprüfen',
 		'website' => 'Website-URL',
 		'websub' => 'Sofortbenachrichtigung mit WebSub',
-		'websub_pending' => 'Subscribed to WebSub. Waiting for the first notification.',	// TODO
+		'websub_pending' => 'WebSub abonniert. Warte auf die Benachrichtigung.',
 	),
 	'import_export' => array(
 		'export' => array(