xslt update based on metanorma/mn-native-pdf@1408bf4

lib/isodoc/cc/cc.standard.xsl

@@ -9900,10 +9900,10 @@
 
 	<xsl:variable name="toc_level">
 		<!-- https://www.metanorma.org/author/ref/document-attributes/ -->
-		<xsl:variable name="htmltoclevels" select="normalize-space(//*[local-name() = 'metanorma-extension']/*[local-name() = 'presentation-metadata'][*[local-name() = 'name']/text() = 'HTML TOC Heading Levels']/*[local-name() = 'value'])"/> <!-- :htmltoclevels  Number of table of contents levels to render in HTML/PDF output; used to override :toclevels:-->
+		<xsl:variable name="pdftoclevels" select="normalize-space(//*[local-name() = 'metanorma-extension']/*[local-name() = 'presentation-metadata'][*[local-name() = 'name']/text() = 'PDF TOC Heading Levels']/*[local-name() = 'value'])"/> <!-- :toclevels-pdf  Number of table of contents levels to render in PDF output; used to override :toclevels:-->
 		<xsl:variable name="toclevels" select="normalize-space(//*[local-name() = 'metanorma-extension']/*[local-name() = 'presentation-metadata'][*[local-name() = 'name']/text() = 'TOC Heading Levels']/*[local-name() = 'value'])"/> <!-- Number of table of contents levels to render -->
 		<xsl:choose>
-			<xsl:when test="$htmltoclevels != ''"><xsl:value-of select="number($htmltoclevels)"/></xsl:when> <!-- if there is value in xml -->
+			<xsl:when test="$pdftoclevels != ''"><xsl:value-of select="number($pdftoclevels)"/></xsl:when> <!-- if there is value in xml -->
 			<xsl:when test="$toclevels != ''"><xsl:value-of select="number($toclevels)"/></xsl:when>  <!-- if there is value in xml -->
 			<xsl:otherwise><!-- default value -->
 				2