Route menu ids ahead of app keyword aliases (#6563)

An installed app whose .desktop Keywords contain a menu id captured the
route: htop ships Keywords=system;..., so SUPER+ESCAPE opened an empty
"Htop" menu instead of the System menu once the Apps menu had merged its
rows. Exact ids now win, and app rows are no longer routable at all —
their keywords remain search-only.

Fixes #6554

Reported-by: Craig Derington (https://github.com/craigderington)

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

shell/plugins/menu/Menu.qml

@@ -841,17 +841,7 @@ Item {
   // in JSONC (`power`, `reminder-set`). Unknown strings fall through to the
   // id-as-route behavior so misspellings still attempt to open the literal id.
   function resolveRoute(input) {
-    var raw = String(input || "").toLowerCase().replace(/_/g, "-")
-    if (!raw || raw === "go" || raw === "menu") return "root"
-    for (var i = 0; i < root.itemOrder.length; i++) {
-      var entry = root.items[root.itemOrder[i]]
-      if (!entry || !entry.aliases) continue
-      for (var j = 0; j < entry.aliases.length; j++) {
-        var alias = String(entry.aliases[j] || "").toLowerCase().replace(/_/g, "-")
-        if (alias === raw) return entry.id
-      }
-    }
-    return raw
+    return MenuModel.resolveRoute(root.items, root.itemOrder, input)
   }
 
   function openRoute(initialMenu) {