Fix Eip712TypedDataV2 for date-type

[Grinion]

Hi, the getEip712TypedDataV2 method doesn't work correctly for a Date. As a consequence, a transaction that has Messages with Date type fields cannot be correctly signed. For example for a message of type MsgGrant method generate:

Blockchain expected:

I'm not sure if this patch is good and won't break other Messages that use the Date type. It may also be better to make this modification on the blockchain

Summary by CodeRabbit

• New Features
  • Enhanced handling of Date objects in transaction data processing to improve accuracy and reliability.

[coderabbitai]

Walkthrough

A new function, Eip712TypedDataV2Replacer, has been introduced to enhance the handling of Date objects in JSON stringification within the EIP712 module. This function is now utilized in the getEip712TypedDataV2 to ensure proper formatting of Date objects during the creation of EIP transaction contexts.

Changes

File Path	Change Summary
.../eip712/eip712.ts	Added Eip712TypedDataV2Replacer for JSON stringification of Date objects.

🐰✨🌟
In the code's woven maze, a twist, a turn,
A function new, for Dates it yearns.
Through JSON strings, it hops and skips,
Crafting contexts with clever quips.
Cheers to changes, small but bright,
In digital realms, a coder's delight!
🌟✨🐰

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Recent Review Details

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Commits

Files that changed from the base of the PR and between b8e13e7 and 2638e7c.

Files selected for processing (1)

• packages/sdk-ts/src/core/modules/tx/eip712/eip712.ts (2 hunks)

Files not reviewed due to errors (1)

• packages/sdk-ts/src/core/modules/tx/eip712/eip712.ts (no review received)

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[bangjelkoski]

Is this PR still needed?