Merge branch '6883-add-trim-filter-spamfilter-wblist' into 'develop'

Trim whitespace from email fields in spamfilter whitelist and blacklist forms #6883

Closes #6883

See merge request ispconfig/ispconfig3!2024

Author: Till Brehm

interface/web/mail/form/spamfilter_blacklist.tform.php

@@ -105,7 +105,9 @@
 				3 => array( 'event' => 'SAVE',
 					'type' => 'STRIPTAGS'),
 				4 => array( 'event' => 'SAVE',
-					'type' => 'STRIPNL')
+					'type' => 'STRIPNL'),
+				5 => array( 'event' => 'SAVE',
+					'type' => 'TRIM')
 			),
 			'validators' => array (  0 => array ( 'type' => 'NOTEMPTY',
 					'errmsg'=> 'email_error_notempty'),

interface/web/mail/form/spamfilter_whitelist.tform.php

@@ -105,7 +105,9 @@
 				3 => array( 'event' => 'SAVE',
 					'type' => 'STRIPTAGS'),
 				4 => array( 'event' => 'SAVE',
-					'type' => 'STRIPNL')
+					'type' => 'STRIPNL'),
+				5 => array( 'event' => 'SAVE',
+					'type' => 'TRIM')
 			),
 			'validators' => array (  0 => array ( 'type' => 'NOTEMPTY',
 					'errmsg'=> 'email_error_notempty'),