[bug] Template throws unexpected argument `preConfigContent` error

[hummusonrails]

Running the following command results in a crash during project scaffolding:

npx create-eth@beta -e BuidlGuidl/arbitrum-extension

After selecting foundry as the framework and confirming the prompts, I encountered this error:

✖ Template received unexpected argument `preConfigContent`. Expecting only `preContent`, `extraMenuLinksObjects`, `logoTitle`, `logoSubtitle`
...
ERROR Error occurred Error: Template received unexpected argument `preConfigContent`.
...
at file:///.../templates/utils.js:55:15

Expected Behavior:
The project should be scaffolded successfully without throwing an error on template arguments.

Actual Behavior:
The process fails with an unexpected argument error, referencing preConfigContent which is not part of the accepted list of template keys.

Steps to Reproduce:

1. Run: npx create-eth@beta -e BuidlGuidl/arbitrum-extension
2. Choose a project name and select foundry as the framework
3. Observe the error during the scaffolding phase

Environment:

• create-eth@1.0.0-beta.3
• Node.js and npm installed via nvm
• macOS

Suggested Fix:

Check if the template includes an unsupported field (preConfigContent) in its config and update to match the expected schema:
preContent, extraMenuLinksObjects, logoTitle, logoSubtitle.