rename JS functions to make them more clear

layouts/partials/gallery.html

@@ -3,7 +3,7 @@
 <div class="snap-gallery-wrapper" style="--columns:{{ default 4 .columns }};--min-width:{{ default 200 .minwidth }};">
   {{ range $i, $img := $imgs }}
   <div class="snap-image">
-    <img src="{{ $img }}" onclick="openModal({{ $galno }});currentSlide({{ $galno }}, {{ add $i 1 }});">
+    <img src="{{ $img }}" onclick="openLightbox({{ $galno }});openLightboxItem({{ $galno }}, {{ add $i 1 }});">
   </div>
   {{ end }}
 </div>