[Portal] Clean up UB docs (#6952)

Signed-off-by: greg <gregfromstl@gmail.com>
Co-authored-by: graphite-app[bot] <96075541+graphite-app[bot]@users.noreply.github.com>

Author: gregfromstl

.changeset/icy-points-wish.md

@@ -0,0 +1,5 @@
+---
+"thirdweb": patch
+---
+
++Deprecate legacy Pay functions

apps/portal/src/app/connect/pay/overview/page.mdx

@@ -13,9 +13,9 @@ export const metadata = createMetadata({
 		"Learn everything about thirdweb’s web3 payments solution, Universal Bridge. Technical docs on onramping, bridging + swapping.",
 });
 
-# Overview
+# Universal Bridge
 
-Universal Bridge allows your users to bridge, swap, and purchase cryptocurrencies and execute transactions with any fiat options or tokens via cross-chain routing. It enables users to purchase or complete in-app transactions with any token they hold.
+Universal Bridge allows you to create both simple and advanced payment flows for bridging, swapping, onramping, and peer-to-peer purchases. It's been used to drive millions in NFT sales, bridge native tokens to brand new chains, send stablecoins between users, and more. To get started check out the [SDK functions](https://portal.thirdweb.com/typescript/v5/buy/quote), [API reference](https://bridge.thirdweb.com/reference), or [playground](https://playground.thirdweb.com/connect/pay).
 
 <DocImage src={PayOverviewImage} />
 
@@ -35,7 +35,7 @@ Universal Bridge allows your users to bridge, swap, and purchase cryptocurrencie
     	description="Bridging support in over 160+ countries to reach a truly global audience."
     		iconUrl={<Globe/>}
     />
-    	    <FeatureCard
+    <FeatureCard
     	title="Earn revenue"
     	description="Monetize your application and earn swap fees on each transaction."
     		iconUrl={<PiggyBank />}
@@ -80,7 +80,6 @@ Universal Bridge is supported on select EVM compatible chains. To view the full
 | Provider | Supported Countries                                                                                     |
 | -------- | ------------------------------------------------------------------------------------------------------- |
 | Transak  | https://transak.notion.site/On-Ramp-Payment-Methods-Fees-Other-Details-b0761634feed4b338a69f4f186d906a5 |
-| Kado     | https://www.kado.money/supported-countries                                                              |
 | Stripe   | https://docs.stripe.com/crypto/onramp                                                                   |
 | Coinbase | https://docs.cdp.coinbase.com/onramp/docs/payment-methods/ |
 
@@ -91,4 +90,5 @@ Universal Bridge is supported on select EVM compatible chains. To view the full
 | [Buy Crypto](https://playground.thirdweb.com/connect/pay/)                                 | Developers who want onramp and crypto purchase experiences directly in their application.                                                 |
 | [Transactions](https://playground.thirdweb.com/connect/pay/transactions) | Developers who want users to onramp or purchase crypto directly into a transaction. Great for minting and NFT purchase flows.             |
 | [In-App Purchases](https://playground.thirdweb.com/connect/pay/commerce)                        | Developers who want to take payments from Fiat or Crypto directly to a seller wallet |
-| [Headless](https://playground.thirdweb.com/connect/pay/backend)                        | Developers who prefer a headless customized flow using APIs. |
+| [SDK](https://portal.thirdweb.com/typescript/v5/buy/quote)                        | Build your own UI with the SDK.  |
+| [API](https://playground.thirdweb.com/connect/pay/backend)                        | Control the full experience with the API.  |