App: Simplify WaterfallMask and add draggable/resizable box #255

Job	Run time
quick-tests	6m 4s
build-frontend	19s
build-x86-musl (ubuntu-22.04, x86_64-unknown-linux-musl)	3m 58s
build-tauri (macos-latest, --target aarch64-apple-darwin, Mac-ARM64)	5m 19s
build (macos-14, aarch64-apple-darwin)	4m 19s
build-tauri (macos-latest, --target x86_64-apple-darwin, Mac-x86)	4m 33s
build (macos-14, x86_64-apple-darwin)	4m 13s
build-tauri (ubuntu-22.04, Linux)	7m 20s
build-tauri (windows-latest, Windows)	11m 50s
build (ubuntu-22.04, aarch64-unknown-linux-musl)	5m 9s
build (ubuntu-22.04, armv7-unknown-linux-musleabihf)	4m 52s
build (ubuntu-22.04, x86_64-unknown-linux-gnu)	4m 13s
build (windows-2022, x86_64-pc-windows-msvc, .exe)	13m 42s
deploy-blueos	16s
	1h 16m 7s

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