Small consistency fixes and typos across quickstarts #14140

Job	Run time
cpp_cmake (ubuntu-22.04)	10m 1s
android	1m 20s
cpp_test_driver (ubuntu-22.04)	7m 3s
cpp_cmake (macos-12)	15m 5s
cpp_cmake (windows-2022)	7m 53s
cpp_test_driver (macos-12)	5m 38s
build_and_test (ubuntu-22.04, stable)	11m 55s
esp-idf-quick	8m 48s
cpp_test_driver (windows-2022)	6m 51s
build_and_test (ubuntu-22.04, 1.70)	9m 49s
ffi_32bit_build	1m 8s
build_and_test (macos-11, stable)	16m 8s
fmt_test	1m 23s
build_and_test (windows-2022, stable)	9m 38s
mcu (pico-st7789, thumbv6m-none-eabi)	45s
build_and_test (windows-2022, 1.70)	8m 55s
mcu_esp	2m 35s
mcu (stm32h735g, thumbv7em-none-eabihf)	45s
miri	47s
build_and_test (windows-2022, beta, --exclude ffmpeg --exclude gstreamer-player)	8m 17s
node_test (ubuntu-22.04)	2m 41s
uefi-demo	42s
updater_test (0.3.0)	1m 18s
python_test (ubuntu-22.04)	1m 38s
python_test (macos-11)	2m 30s
python_test (windows-2022)	3m 22s
node_test (macos-11)	5m 59s
node_test (windows-2022)	4m 4s
docs / docs	6m 4s
tree-sitter / tree-sitter-tests	12s
wasm / wasm	3m 38s
wasm_demo / wasm_demo	14m 28s
wasm / lint-slintpad	28s
wasm / build-slintpad	50s
cpp_package_test	2m 11s
	3h 4m 49s

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