Disable Holdstation SDK card and remove pages (#96)

Comment out the Holdstation WorldChain SDK Card in mini-apps/ecosystem/ecosystem.mdx and remove its related QA pages.

Author: mateosauton

docs.json

@@ -181,9 +181,7 @@
                 "pages": [
                   "mini-apps/sharing/quick-actions",
                   "mini-apps/sharing/add-money-qa",
-                  "mini-apps/sharing/uno-qa",
                   "mini-apps/sharing/swap-qa",
-                  "mini-apps/sharing/holdstation-buy-qa",
                   "mini-apps/sharing/earn-wld-qa",
                   "mini-apps/sharing/dna-qa",
                   "mini-apps/sharing/sage-qa",

mini-apps/ecosystem/ecosystem.mdx

@@ -7,15 +7,15 @@ title: "Ecosystem Tools"
 Ecosystem tools and integrations for builders on World Chain and Mini Apps.
 
 <CardGroup cols={2}>
-  <Card
-    title="Holdstation WorldChain SDK"
-    icon="code"
-    href="https://docs.holdstation.com/holdstation/integration/holdstation-worldchain-sdk"
-  >
-    Integrate token functionality into your dApps: token lists and balances,
-    transaction history, send tokens, swaps, and prebuilt widgets (connect
-    wallet, token selector, transaction modals).
-  </Card>
+  {/* <Card
+  //   title="Holdstation WorldChain SDK"
+  //   icon="code"
+  //   href="https://docs.holdstation.com/holdstation/integration/holdstation-worldchain-sdk"
+  // >
+  //   Integrate token functionality into your dApps: token lists and balances,
+  //   transaction history, send tokens, swaps, and prebuilt widgets (connect
+  //   wallet, token selector, transaction modals).
+  </Card> */}
   <Card
     title="Oculus Analytics"
     icon="chart-line"