feat(nav): add Stake to the Money dropdown

/stake was only reachable from the homepage and by direct URL. It sits second
in Money, right after Treasury: Treasury is where the DAO's money is, Stake is
what a visitor can actually do with theirs.

No badge. Bounties and Swap carry "NEW!" and Rounds and Shop carry "SOON", but
which of those Stake deserves is a call about the campaign's status, not
something to infer from the route existing.

Copy in EN and pt-BR, both lifted from the page's own hero so the dropdown and
the destination say the same thing. "Stake" stays untranslated in pt-BR, like
Rounds, Bounties and Swap already do.

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

Author: sktbrd

messages/en/nav.json

@@ -37,6 +37,10 @@
         "title": "Treasury",
         "description": "ETH, ERC-20s, NFTs, and onchain analytics for the DAO treasury"
       },
+      "stake": {
+        "title": "Stake",
+        "description": "Back a Gnars rider with MOR — your deposit stays yours and keeps earning"
+      },
       "rounds": {
         "title": "Rounds",
         "description": "Community contests and voting rounds for Gnars projects — coming soon, not available yet"

messages/pt-br/nav.json

@@ -37,6 +37,10 @@
         "title": "Tesouro",
         "description": "ETH, ERC-20s, NFTs e analytics onchain do tesouro da DAO"
       },
+      "stake": {
+        "title": "Stake",
+        "description": "Apoie um rider da Gnars com MOR — seu depósito continua seu e rendendo"
+      },
       "rounds": {
         "title": "Rounds",
         "description": "Concursos e votacoes comunitarias para projetos Gnars — em breve, ainda nao disponivel"

src/components/layout/DaoHeader.tsx

@@ -25,6 +25,7 @@ import Image from "next/image";
 import {
   ArrowLeftRight,
   BookOpen,
+  Coins,
   Gavel,
   Gift,
   Home,
@@ -135,6 +136,12 @@ function buildNavigationItems(t: NavTranslations) {
           icon: Wallet,
           description: t("items.money.treasury.description"),
         },
+        {
+          title: t("items.money.stake.title"),
+          href: "/stake",
+          icon: Coins,
+          description: t("items.money.stake.description"),
+        },
         {
           title: t("items.money.bounties.title"),
           href: "/community/bounties",