live-preview: Fix moving of elements #15169

Job	Run time
python_test (ubuntu-22.04)	2m 5s
python_test (macos-11)	2m 15s
python_test (windows-2022)	1m 59s
build_and_test (ubuntu-22.04, stable)	10m 16s
cpp_cmake (ubuntu-22.04)	6m 14s
build_and_test (ubuntu-22.04, 1.73)	12m 16s
cpp_test_driver (ubuntu-22.04)	5m 55s
cpp_cmake (macos-12)	11m 45s
build_and_test (macos-11, stable)	37m 47s
cpp_test_driver (macos-12)	5m 5s
cpp_cmake (windows-2022)	8m 53s
build_and_test (windows-2022, stable)	10m 52s
ffi_32bit_build	1m 10s
cpp_test_driver (windows-2022)	7m 42s
build_and_test (windows-2022, 1.73)	9m 47s
build_and_test (windows-2022, beta, --exclude ffmpeg --exclude gstreamer-player)	10m 15s
mcu (pico-st7789, thumbv6m-none-eabi)	49s
mcu (stm32h735g, thumbv7em-none-eabihf)	47s
mcu_esp	2m 25s
node_test (ubuntu-22.04)	2m 36s
node_test (macos-11)	27m 44s
uefi-demo	42s
android	2m 27s
node_test (windows-2022)	5m 58s
esp-idf-quick	8m 50s
fmt_test	1m 46s
miri	47s
updater_test (0.3.0)	1m 52s
docs / docs	6m 39s
wasm / wasm	4m 18s
tree-sitter / tree-sitter-tests	9s
wasm_demo / wasm_demo	15m 15s
wasm / build-slintpad	50s
wasm / lint-slintpad	33s
cpp_package_test	2m 50s
	3h 51m 33s

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