Add related transactions and ledger entries (batch 3)

Fixes https://github.com/XRPLF/xrpl-dev-portal/issues/3220

- Adds related topics to the ledger entry and transaction type pages.

Preview [here](https://xrpl-dev-portal--related-topics-batch-2.preview.redocly.app/docs/references/protocol/ledger-data/ledger-entry-types/delegate)

- Batch 1: https://github.com/XRPLF/xrpl-dev-portal/pull/3235
- Batch 2: https://github.com/XRPLF/xrpl-dev-portal/pull/3246

Batch 3 covers:

- [x] MPTokenIssuance + transactions
- [x] NFTokenOffer + transactions
- [x] Offer + transactions
- [x] Oracle + transactions
- [x] PayChannel + transactions

docs/references/protocol/ledger-data/ledger-entry-types/mptokenissuance.md

@@ -74,4 +74,11 @@ The `MPTokenIssuanceID` is a 192-bit integer, concatenated in order:
 - The transaction sequence number.
 - The AccountID of the issuer.
 
+## See Also
+
+- **Transactions:**
+   - [MPTokenIssuanceCreate transaction][]
+   - [MPTokenIssuanceDestroy transaction][]
+   - [MPTokenIssuanceSet transaction][]
+
 {% raw-partial file="/docs/_snippets/common-links.md" /%}

docs/references/protocol/ledger-data/ledger-entry-types/nftokenoffer.md

@@ -82,4 +82,11 @@ The unique ID (`NFTokenOfferID`) of a `NFTokenOffer` object is the result of the
 * The `AccountID` of the account placing the offer; and
 * The `Sequence` (or `Ticket`) of the `NFTokenCreateOffer` transaction that created the `NFTokenOffer`.
 
+## See Also
+
+- **Transactions:**
+  - [NFTokenAcceptOffer transaction][]
+  - [NFTokenCancelOffer transaction][]
+  - [NFTokenCreateOffer transaction][]
+
 {% raw-partial file="/docs/_snippets/common-links.md" /%}

docs/references/protocol/ledger-data/ledger-entry-types/offer.md

@@ -80,4 +80,10 @@ The ID of an `Offer` entry is the [SHA-512Half][] of the following values, conca
 
     If the OfferCreate transaction used a [ticket](../../../../concepts/accounts/tickets.md), use the `TicketSequence` value instead.
 
+## See Also
+
+- **Transactions:**
+  - [OfferCancel transaction][]
+  - [OfferCreate transaction][]
+
 {% raw-partial file="/docs/_snippets/common-links.md" /%}

docs/references/protocol/ledger-data/ledger-entry-types/oracle.md

@@ -90,4 +90,10 @@ The `Currency` field type contains 160 bits of arbitrary data representing a cur
 }
 ```
 
+## See Also
+
+- **Transactions:**
+  - [OracleSet transaction][]
+  - [OracleDelete transaction][]
+
 {% raw-partial file="/docs/_snippets/common-links.md" /%}

docs/references/protocol/ledger-data/ledger-entry-types/paychannel.md

@@ -106,4 +106,11 @@ The ID of a `PayChannel` entry is the [SHA-512Half][] of the following values, c
 * The Sequence number of the [PaymentChannelCreate transaction][] that created the channel
     If the PaymentChannelCreate transaction used a [Ticket](../../../../concepts/accounts/tickets.md), use the `TicketSequence` value instead.
 
+## See Also
+
+- **Transactions:**
+  - [PaymentChannelClaim transaction][]
+  - [PaymentChannelCreate transaction][]
+  - [PaymentChannelFund transaction][]
+  
 {% raw-partial file="/docs/_snippets/common-links.md" /%}