Update Remote EVM Execution XCM docs for XCM V3

[eshaben]

Description

This PR updates the Remote Execution docs for XCM V3 and Weights V2. It also uses Polkadot.js API snippets instead of using the Polkadot.js Apps interface.

There are some images are no longer needed for this page, but keeping those in tact for CN version until translations are complete.

Checklist

• If this requires translations for the moonbeam-docs-cn repo, I have created a ticket for the translations in Jira

After Translation Requirements

• Will need to create PR in moonbeam-docs repo to remove images

Items to be Updated

Need to remove the following images:

• images/builders/interoperability/xcm/remote-evm-calls/xcmevm-2.png
• images/builders/interoperability/xcm/remote-evm-calls/xcmevm-3.png

[albertov19]

Looks good! Left a minor comment similar to other PRs.

[albertov19]

Did you see my review on the XCM Transactor PR, maybe we can add a code snippet to handle account decoding? What do you think?

[eshaben]

Did you see my review on the XCM Transactor PR, maybe we can add a code snippet to handle account decoding? What do you think?

Yeah the comment was on the Send & Execute PR and I made the changes there to include it in the example code snippet. This page doesn't have an existing example where I could implement it, so I added in a small snippet about it