Arizona ADU Builders template edit

Primary homepage: index.html
Pages renamed for SEO:
- about-arizona-adu-builders.html
- arizona-adu-services.html
- custom-adu-design-build.html
- arizona-adu-projects.html
- adu-project-details.html
- contact-arizona-adu-builders.html
- arizona-adu-resources.html
- adu-cost-guide.html

Notes:
- Demo homepages and team pages were removed.
- Core branding, contact details, navigation targets, and major homepage sections were rewritten for Arizona ADU Builders.
- Images and template styling were preserved.
