Rank installed apps above equally matching menu entries

Searching the menu for an installed app buried it: "brave" listed Setup >
Defaults > Browser, Install > Browser and Remove > Browser ahead of the
Brave app itself. All four are exact label matches scoring 0, so the
tiebreak falls to declaration order, and mergeAppRows appends app rows
after every static item.

Bias app rows ahead of menu entries that match equally well. The bias is
smaller than the gap between match tiers, so a menu entry that matches the
query better still sorts first.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

shell/plugins/menu/MenuModel.js

@@ -309,6 +309,12 @@ function searchScore(items, entry, query) {
   else if (descriptionTextMatches(needle, descriptionText)) score = 60
 
   if (entry.kind === "menu" || entry.kind === "link") score -= 2
+  // mergeAppRows appends app rows after every menu item, so an app always
+  // loses the order tiebreak below to a menu entry that matches just as well.
+  // Searching an installed app's name should launch it, not offer to install
+  // or remove it. The bias stays under the 10-point gap between match tiers,
+  // so a menu entry that matches better still sorts first.
+  if (entry.kind === "app") score -= 5
 
   return score * 1000 + depthFor(items, entry.id) * 25 + entry.order
 }