[TASK] add hint in flexform id description label, regarding upright videos

Resources/Private/Language/de.locallang.xlf

@@ -102,8 +102,8 @@
 				<target><![CDATA[Video-ID (https://vimeo.com/%VIDEO_ID%), Kanal-Name (https://vimeo.com/channels/%KANAL_NAME%) oder Showcase (showcase/%SHOWCASE_ID%)]]></target>
 			</trans-unit>
 			<trans-unit id="flexform.id.description" approved="yes">
-				<source><![CDATA[Example inputs - Single video: 123456789 | Channel: channel/channelname | Showcase: showcase/987645]]></source>
-				<target><![CDATA[Beispieleingaben - Einzelnes Video: 123456789 | Kanal: channel/kanalname | Showcase: showcase/987645]]></target>
+				<source><![CDATA[Example inputs - Single video: 123456789 | Channel: channel/channelname | Showcase: showcase/987645 | Please note that portrait (upright) videos are not supported to be displayed within a lightbox, so please make sure to check "Replace the thumbnail with the video and disable the lightbox" for those videos.]]></source>
+				<target><![CDATA[Beispieleingaben - Einzelnes Video: 123456789 | Kanal: channel/kanalname | Showcase: showcase/987645 | Bitte beachten Sie, dass Videos im Hochformat nicht in der Lightbox dargestellt werden können. Aktivieren Sie für diese Videos daher bitte die Option: "Das Thumbnail durch das Video ersetzen und die Lightbox deaktivieren".]]></target>
 			</trans-unit>
 			<trans-unit id="flexform.filterIds" approved="yes">
 				<source><![CDATA[IDs of the videos to exclude]]></source>

Resources/Private/Language/locallang.xlf

@@ -51,7 +51,7 @@
 				<source><![CDATA[Playlist]]></source>
 			</trans-unit>
 			<trans-unit id="flexform.id.description">
-				<source><![CDATA[Example inputs - Single video: 123456789 | Channel: channel/channelname | Showcase: showcase/987645]]></source>
+				<source><![CDATA[Example inputs - Single video: 123456789 | Channel: channel/channelname | Showcase: showcase/987645 | Please note that portrait (upright) videos are not supported to be displayed within a lightbox, so please make sure to check "Replace the thumbnail with the video and disable the lightbox" for those videos.]]></source>
 			</trans-unit>
 			<trans-unit id="flexform.maxResults">
 				<source><![CDATA[Maximum Amount]]></source>