fix(sidebar): update transform syntax for improved compatibility

Author: imfing

assets/css/compiled/main.css

@@ -20,7 +20,7 @@
   {{- end -}}
 {{- end -}}
 
-<aside class="hextra-sidebar-container hx:flex hx:flex-col hx:print:hidden hx:md:top-16 hx:md:shrink-0 hx:md:w-64 hx:md:self-start hx:max-md:transform-[translate3d(0,-100%,0)] {{ $sidebarClass }}">
+<aside class="hextra-sidebar-container hx:flex hx:flex-col hx:print:hidden hx:md:top-16 hx:md:shrink-0 hx:md:w-64 hx:md:self-start hx:max-md:[transform:translate3d(0,-100%,0)] {{ $sidebarClass }}">
   {{- if (site.Params.search.enable | default true) -}}
     <!-- Search bar on small screen -->
     <div class="hx:px-4 hx:pt-4 hx:md:hidden">