Replace raw Cmd+Enter hint in tag popover with shui shortcut component

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

src/main/frontend/components/editor.cljs

@@ -244,8 +244,8 @@
        (when (and db-tag?
                   (not (string/blank? q))
                   (not= "page" (string/lower-case q)))
-         [:p.px-1.opacity-50.text-sm
-          [:code (if util/mac? "Cmd+Enter" "Ctrl+Enter")]
+         [:p.px-1.opacity-50.text-sm.flex.flex-row.items-center.gap-2
+          (shui/shortcut "mod+enter")
           [:span " to display this tag inline instead of at the end of this node."]])])))
 
 (rum/defcs page-search < rum/reactive