fix: v0.8 review and polish

[jaypaik]

Some updates to the spec after a review. This PR does not make any changes that would result in interface selectors changing. Will follow up on another PR for one change that would impact that for a more careful review.

Notable changes (non-exhaustive):

1. Updates the title of the ERC from Modular Smart Contract Accounts and Modules to Modular Smart Contract Accounts. I think the latter implies that the standard would cover modules. Feel free to push back on this.
2. Updates places where we refer to "validation functions" as "validations" to expand it to "validation functions" (for consistency with our Terms section).
3. Within the execution function uninstallation section, replaces The account MUST remove all supported interfaces as specified in the manifest. to The account SHOULD remove all supported interfaces as specified in the manifest. This allows account implementations to choose custom behavior such as how to handle duplicate interface IDs.

[octane-security-app-dev]

Summary by Octane

New Contracts

No new contracts were added in this PR.

Updated Contracts

• IExecutionHookModule.sol: Updates require executeUserOp calls to pass full msg.data to hook modules in the data parameter.
• IModularAccount.sol: Added uninstall functionality for modules, clarified data parameters, and structured execution validation processes.
• IModularAccountView.sol: Clarifications in comments and return descriptions, improving documentation of function selectors and validation functions.
• IValidationModule.sol: The signature validation function's return description is rephrased for consistent formatting without altering functionality.

---

🔗 Commit Hash: 2cc57dd

[octane-security-app-dev]

Overview

Octane AI analysis has finished. No vulnerabilities were found. Cheers! 🎉🎉🎉

---

🔗 Commit Hash: 2cc57dd

[huaweigu]

LGTM

[adamegyed]

Looks good, thank you for the thorough review!