cookbook: replace sdk-js-cookbook-v15 with the new cookbook (redirect + repoint inbound links)

Author: lamentierschweinchen

docs/developers/relayed-transactions.md

@@ -119,4 +119,4 @@ Here's an example of a relayed v3 transaction. Its intent is to call the `add` m
 The SDKs have built-in support for relayed transactions. Please follow:
  - [mxpy support](/sdk-and-tools/mxpy/mxpy-cli/#relayed-transactions-v3)
  - [sdk-py support](/sdk-and-tools/sdk-py/#relayed-transactions)
- - [sdk-js v15 support](/sdk-and-tools/sdk-js/sdk-js-cookbook#relayed-transactions)
+ - [sdk-js relayed transactions](/sdk-and-tools/sdk-js/cookbook/accounts/relayed-v3-transaction)

docs/developers/sc-calls-format.md

@@ -78,7 +78,7 @@ There are multiple ways of formatting the data field:
 
 - manually convert each argument, and then join the function name, alongside the argument via the `@` character.
 - use a pre-defined arguments serializer, such as [the one found in sdk-js](https://github.com/multiversx/mx-sdk-js-core/blob/main/src/smartcontracts/argSerializer.ts).
-- use sdk-js's [contract calls](/sdk-and-tools/sdk-js/sdk-js-cookbook/#smart-contracts).
+- use sdk-js's [contract calls](/sdk-and-tools/sdk-js/cookbook/smart-contracts-call/call-contract-endpoint).
 - use sdk-cpp's [contract calls](https://github.com/multiversx/mx-sdk-cpp/blob/main/src/smartcontracts/contract_call.cpp).
 - and so on
 

docs/developers/signing-transactions/signing-programmatically.md

@@ -6,5 +6,5 @@ description: "Sign transactions programmatically using the SDKs: build, sign and
 
 In order to sign a transaction (or a message) using one of the SDKs, follow:
 
-- [Signing objects using **sdk-js**](/sdk-and-tools/sdk-js/sdk-js-cookbook#signing-objects)
+- [Signing objects using **sdk-js**](/sdk-and-tools/sdk-js/cookbook/accounts/sign-verify-transaction)
 - [Signing objects using **sdk-py**](/sdk-and-tools/sdk-py#signing-objects)

docs/sdk-and-tools/overview.md

@@ -31,7 +31,7 @@ Note that Rust is also the recommended programming language for writing Smart Co
 | Name                                                                                                     | Description                                         |
 | -------------------------------------------------------------------------------------------------------- | --------------------------------------------------- |
 | [sdk-js](/sdk-and-tools/sdk-js)                                                                          | High level overview about sdk-js.                   |
-| [sdk-js cookbook](/sdk-and-tools/sdk-js/sdk-js-cookbook)                                             | Learn how to handle common tasks by using sdk-js.   |
+| [sdk-js cookbook](/sdk-and-tools/sdk-js/cookbook)                                             | Learn how to handle common tasks by using sdk-js.   |
 | [Extending sdk-js](/sdk-and-tools/sdk-js/extending-sdk-js)                                               | How to extend and tailor certain modules of sdk-js. |
 | [Writing and testing sdk-js interactions](/sdk-and-tools/sdk-js/writing-and-testing-sdk-js-interactions) | Write sdk-js interactions for Visual Studio Code    |
 | [sdk-js signing providers](/sdk-and-tools/sdk-js/sdk-js-signing-providers)                               | Integrate sdk-js signing providers.                 |

docs/sdk-and-tools/sdk-js/cookbook/accounts/fetch-account-state.mdx

@@ -177,9 +177,6 @@ each value as a hex string; `getAccountStorageEntry` returns the same value
 decoded to UTF-8. Verified live in the output above: `btc` is `62633171...` in
 bulk and `bc1q...` as a single entry.
 
-For conceptual depth, see
-[docs.multiversx.com/sdk-and-tools/sdk-js/sdk-js-cookbook](https://docs.multiversx.com/sdk-and-tools/sdk-js/sdk-js-cookbook).
-
 ## Pitfalls
 
 :::warning[Pitfall 1: userName is typed string but can be undefined]

docs/sdk-and-tools/sdk-js/cookbook/accounts/manage-nonces.mdx

@@ -182,9 +182,6 @@ out. `resyncNonce()` recovers by re-fetching the real value and overwriting the
 local counter — a recovery step to call after a failure, not a defensive pre-check
 before every send.
 
-For conceptual depth, see
-[docs.multiversx.com/sdk-and-tools/sdk-js/sdk-js-cookbook](https://docs.multiversx.com/sdk-and-tools/sdk-js/sdk-js-cookbook).
-
 ## Pitfalls
 
 :::note[Pitfall 1: this recipe does not wait for each transaction to confirm before sending the next]