Update documentation and images across multiple pages

[seanh1995]

Type of Change

• New feature
• Bug fix
• Documentation update
• UI/UX improvement

Description

This pull request updates documentation to improve clarity, consistency, and user experience. i have updated the contributor to match what is on github and i have also made changes to the user guides. The most significant changes include standardizing the spelling of "WinUtil," adding new screenshots to user guides for better visual guidance, clarifying contribution guidelines, and updating navigation menus.

Documentation consistency and clarity:

• Standardized the spelling of "WinUtil" throughout the CONTRIBUTING.md file and clarified instructions and warnings for contributors, including new guidance to not open PRs for language support and to properly name function files. [1] [2] [3] [4] [5]

User guide enhancements:

• Added new, up-to-date screenshots to the application, features, tweaks, updates, and Win11 Creator user guide sections, replacing outdated images and improving visual instructions for users. [1] [2] [3] [4] [5]

Navigation improvements:

• Added a "Forums" link to the main navigation menu in hugo.toml for easier access to community support.

Issue related to PR

• Resolves #