UI Refactoring

[brenocq]

Feature description
The UI doesn't look great as of now, it should be improved.

Tasks

• Make sure code builds
• ImPlot3D integration
• Improve ImGui style
• Fix web build
• Organize UI folders
• Fix viewports
  • Move viewports from graphics module to UI module
  • Remove viewports
  • Dock new viewports
  • Viewport modals
• Fix selection click
• FIx ImGuizmo

[brenocq]

The ImGui style was improved to have a better visual and custom font :)

Before

After