fix Qobject error

[slspencer]

fix: include in ifcdef.cpp

[ghost]

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[what-the-diff]

Amazing Progress Team! 😃 PR Summary:

The overall aim of this PR is to streamline and modernize the project by updating important web URLs across the codebase.

1. Align the URL in Code of Conduct: 🌐
   Great work on updating the contact email to keep up with our recent changes. Seamless communication is the key to success!

2. Enhanced Developer Information: 📘
   You've made developer documentation more accessible by adding a link to Doxygen Docs in the README-DEVELOPER.md file. Understanding the project is now just a click away!

3. Updated website URL changes throughout: 🖥️
   Kudos for seamlessly updating website URLs across various critical files (like README.md, config.yml, VApplication.cpp, MainWindow.cpp and vpattern.cpp). You've ensured that all connections lead to the right domain.

4. Impactful alterations in XML pattern files: 🔗
   The website URL in multiple XML pattern files has gone through a significant update. This brings consistency and better representation.

5. Added some eye comfort factor: 👀
   Loved the addition of the DARK theme to the Doxyfile. It's such a relief for those late-night code sessions!

6. Neat coding updates: 🧹
   You nailed it with great housekeeping work. Updating imports in src/libs/ifc/ifcdef.cpp and keeping the code clean reflect your attention to detail.

7. Consistent version alignment: 🔄
   You've made the versioning congruous across multiple files, updating from 0.X.X to 0.4.2. That's the way to maintain uniformity!

8. Improved project version file: 📁
   The src/libs/vmisc/projectversion.h file now represents our new domain. It's such a small change but a crucial one!

Keep up the good work! Happy coding! 💻🚀 😃