Add collections pagination and a search field on the search page

Paginate the collections grid with a "See more" button backed by a new
getCollectionsPage cursor API, add an editable search input to the
search-results block, and bump @shopify/hydrogen to 2026.10.0-preview.1.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DqFkSaLYRPZ18dsMbzjiP4

yarn.lock

@@ -2404,22 +2404,25 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@shopify/hydrogen@npm:0.0.0-preview-116d5d7-20260730141607":
-  version: 0.0.0-preview-116d5d7-20260730141607
-  resolution: "@shopify/hydrogen@npm:0.0.0-preview-116d5d7-20260730141607"
+"@shopify/hydrogen@npm:2026.10.0-preview.1":
+  version: 2026.10.0-preview.1
+  resolution: "@shopify/hydrogen@npm:2026.10.0-preview.1"
   dependencies:
     gql.tada: "npm:1.9.2"
   peerDependencies:
     react: ^18.0.0 || ^19.0.0
+    vite: ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0
     vue: ^3.5.0
   peerDependenciesMeta:
     react:
       optional: true
+    vite:
+      optional: true
     vue:
       optional: true
   bin:
     hydrogen: bin/hydrogen.mjs
-  checksum: 10c0/b12e230d174a910d8abb7ab18ecb99357dce82d2125054b30af6dcbecf280c6fea40c8ca5fd67d8931e1079fd73e587e3ea1484f50c294f4a79ad714c9664ecd
+  checksum: 10c0/3fdc23d9ac756634bf5a84b6fec1adad5f1e11c2a9bb901fe0928235ddeae0b50048fe5c1594a0baa0cfe9477b69067c63d9a0903ef49a2b4ee4aa7b1be0d18c
   languageName: node
   linkType: hard
 
@@ -5828,7 +5831,7 @@ __metadata:
     "@reacteditor/plugin-shopify": "npm:0.0.2"
     "@reacteditor/plugin-tailwind-cdn": "npm:0.0.4"
     "@remixicon/react": "npm:^4.9.0"
-    "@shopify/hydrogen": "npm:0.0.0-preview-116d5d7-20260730141607"
+    "@shopify/hydrogen": "npm:2026.10.0-preview.1"
     "@shopify/storefront-api-client": "npm:^1.0.0"
     "@tailwindcss/postcss": "npm:^4"
     "@types/hast": "npm:^3.0.5"