fix: allow Symbol on Avo::ProfileItemComponent method

[Paul-Bob]

Description

Allow Symbol on Avo::ProfileItemComponent method prop.

  config.profile_menu = -> do
    link_to "Sign out", path: main_app.destroy_user_session_path, icon: "user-circle", method: :post
  end

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works

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[github-actions]

This PR has been merged into main. The functionality will be available in the next release.

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