Refactor code for readability

[Ayiga]

This PR:

Refactors the optimism_espresso_test_helpers.go file to help readability and maintainability

The code within the optimism_espresso_test_helpers.go file works without issue, but it can be difficult to follow due to being over a hundred lines and several indentation levels deep. This code has been split up into smaller functions that are more focused and feature additional comments to motivate and describe their actions.

This PR does not:

Modify the existing behavior, it should just move the logic and behavior into different functions to help readability and maintainability.

[philippecamacho]

Surprisingly enough the integration test fails for me:

> git log
commit e9f217ac132a209567c70e9f6d098cd9e2496367 (HEAD -> ts/ref/cleanup-code-helpers-for-espresso-devnet, origin/ts/ref/cleanup-code-helpers-for-espresso-devnet)
Author: Theodore Schnepper <[email protected]>
Date:   Fri Apr 18 11:07:46 2025 -0600

    Refactor code for readability
    
    The code in the `optimism_test_helpers.go` works but a lot of it is
    deeply nested and long which hurts readability.
    
    This change refactors the code into smaller functions with reduced
    indentation level, and more annotated comments to help
    readability, maintainability, and clarity.
> just espresso-tests
... (error see file attached)

tests.log

[Ayiga]

Interesting... Your error seems to be:

unable to determine the host for the espresso-dev-node sequencer api

Which means that we didn't populate your port remap at all. It looks like you're failing all of the e2e espresso dev node tests with the same error.

[QuentinI]

Rebased in #181