Drop invalid document="ixsl:page()" from modal-search debounce

The in-modal live-search onkeyup handler scheduled its deferred search with
<ixsl:schedule-action wait="$delay" document="ixsl:page()">. The document
attribute names fetchable document URIs; the literal string ixsl:page() made
SaxonJS attempt fetch("ixsl:page()"), logging "Fetch API cannot load
ixsl:page(). URL scheme ixsl is not supported" on every debounced keystroke.

The deferred body reaches the live page via ixsl:page() at execution time and
needs no preloaded document, so wait alone is the correct trigger — matching
the typeahead debounce in form.xsl.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: namedgraph

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

@@ -1355,7 +1355,7 @@ ORDER BY DESC(?created)
         <xsl:choose>
             <xsl:when test="$key-code = 'Enter'"/> <!-- handled by form-submit -->
             <xsl:when test="string-length($text) gt 0">
-                <ixsl:schedule-action wait="$delay" document="ixsl:page()">
+                <ixsl:schedule-action wait="$delay">
                     <xsl:call-template name="ldh:SearchLoadDeferred">
                         <xsl:with-param name="input" select="."/>
                         <xsl:with-param name="text" select="$text"/>