Fix LT-22532: Add Help url for Media field in Info tab (#948)

Fix LT-22532: Add Help url for Medial fiel field in Info tab
(cherry picked from commit 01051b7)

Author: jtmaxwell3

DistFiles/Language Explorer/Configuration/Parts/CellarParts.xml

@@ -184,7 +184,7 @@
 			<slice label="Text is a translation" field="IsTranslated" editor="Checkbox" menu="mnuDataTree-Help"/>
 		</part>
  		<part id="Text-Detail-Media" type="Detail">
-			<slice label="Media" field="MediaFiles" editor="custom" assemblyPath="DetailControls.dll" class="SIL.FieldWorks.Common.Framework.DetailControls.MediaInfoSlice" />
+			<slice label="Media" field="MediaFiles" editor="custom" assemblyPath="DetailControls.dll" class="SIL.FieldWorks.Common.Framework.DetailControls.MediaInfoSlice" helpTopicID="khtpField-Interlinear-Media"/>
 		</part>
 		<part id="Text-Detail-CommentAllWs" type="Detail">
 			<slice label="Comment" editor="multistring" ws="analysis vernacular" field="Description" menu="mnuDataTree-Help"/>