- add back scale for primitive generators

src/app/index.ts

src/lib/elements/primitives/ArrowPrimitive.ts

src/lib/elements/primitives/EllipsePrimitive.ts

src/lib/elements/primitives/RectanglePrimitive.ts

src/lib/elements/primitives/TextPrimitive.ts

src/lib/generators/combinations/ArrowGenerator.ts

src/lib/generators/combinations/EllipseGenerator.ts

src/lib/generators/combinations/InteractiveAreaGenerator.ts

src/lib/generators/combinations/MarkerGenerator.ts

src/lib/generators/combinations/PrimitiveMarkerGenerator.ts

src/lib/generators/combinations/RectangleGenerator.ts

src/lib/generators/primitives/ArrowPrimitiveGenerator.ts

src/lib/generators/primitives/EllipsePrimitiveGenerator.ts

src/lib/generators/primitives/RectanglePrimitiveGenerator.ts

src/lib/generators/primitives/TextPrimitiveGenerator.ts

src/lib/interactions/ScaleInteraction.ts