Ignore clicks on disabled edit button in modal click handler

Add [not(contains-token(@Class, 'disabled'))] predicate to the btn-edit
match template so that clicking a disabled edit button does not open the
edit modal.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: namedgraph

src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/client/modal.xsl

@@ -802,7 +802,7 @@ LIMIT   10
 
     <!-- open a form for document editing -->
 
-    <xsl:template match="div[contains-token(@class, 'action-bar')]//button[contains-token(@class, 'btn-edit')]" mode="ixsl:onclick">
+    <xsl:template match="div[contains-token(@class, 'action-bar')]//button[contains-token(@class, 'btn-edit')][not(contains-token(@class, 'disabled'))]" mode="ixsl:onclick">
         <xsl:param name="about" select="ac:absolute-path(ldh:base-uri(.))" as="xs:anyURI"/> <!-- editing the current document resources -->
         <xsl:param name="method" select="'patch'" as="xs:string"/>
         <xsl:param name="form-actions-class" select="'form-actions modal-footer'" as="xs:string?"/>