LSP preview: disable selection handle when not in experimental mode #13818

Job	Run time
build_and_test (ubuntu-22.04, stable)	11m 13s
android	3m 36s
build_and_test (ubuntu-22.04, 1.70)	10m 15s
cpp_test_driver (ubuntu-22.04)	7m 28s
cpp_cmake (ubuntu-22.04)	6m 4s
build_and_test (macos-11, stable)	36m 31s
cpp_test_driver (macos-12)	15m 17s
cpp_cmake (macos-12)	18m 37s
build_and_test (windows-2022, stable)	23m 10s
cpp_test_driver (windows-2022)	8m 15s
build_and_test (windows-2022, 1.70)	24m 16s
esp-idf	25m 57s
cpp_cmake (windows-2022)	10m 41s
build_and_test (windows-2022, beta, --exclude ffmpeg --exclude gstreamer-player)	22m 54s
ffi_32bit_build	4m 48s
fmt_test	3m 11s
mcu (pico-st7789, thumbv6m-none-eabi)	1m 16s
mcu_esp	2m 29s
node_test (ubuntu-22.04)	6m 6s
mcu (stm32h735g, thumbv7em-none-eabihf)	1m 19s
python_test (ubuntu-22.04)	1m 33s
node_test (macos-11)	7m 52s
python_test (macos-11)	2m 0s
tree-sitter	10s
node_test (windows-2022)	4m 13s
uefi-demo	33s
python_test (windows-2022)	1m 55s
updater_test (0.3.0)	1m 17s
docs / docs	6m 36s
wasm / wasm	3m 43s
wasm_demo / wasm_demo	13m 48s
wasm / build-slintpad	57s
wasm / lint-slintpad	29s
cpp_package_test	2m 20s
	4h 50m 49s

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