fix(windows): fix set_size doing nothing for undecorated window with shadows #2679

Job	Run time
test_tao_macros	2m 39s
fmt check	4s
tests (windows, x86_64-pc-windows-msvc, windows-latest)	8m 12s
tests (windows, x86_64-pc-windows-msvc, windows-latest, serde)	6m 1s
tests (windows, x86_64-pc-windows-msvc, windows-latest, rwh_04,rwh_05,rwh_06)	5m 41s
tests (ubuntu, x86_64-unknown-linux-gnu, ubuntu-latest)	3m 52s
tests (ubuntu, x86_64-unknown-linux-gnu, ubuntu-latest, serde)	4m 6s
tests (ubuntu, x86_64-unknown-linux-gnu, ubuntu-latest, rwh_04,rwh_05,rwh_06)	6m 13s
tests (macos, x86_64-apple-darwin, macos-latest)	1m 31s
tests (macos, x86_64-apple-darwin, macos-latest, serde)	1m 37s
tests (macos, x86_64-apple-darwin, macos-latest, rwh_04,rwh_05,rwh_06)	3m 53s
tests (android, aarch64-linux-android, ubuntu-latest, apk --)	4m 13s
tests (android, aarch64-linux-android, ubuntu-latest, apk --, serde)	1m 54s
tests (android, aarch64-linux-android, ubuntu-latest, apk --, rwh_04,rwh_05,rwh_06)	2m 10s
tests (ios, aarch64-apple-ios, macos-latest)	50s
tests (ios, aarch64-apple-ios, macos-latest, serde)	56s
tests (ios, aarch64-apple-ios, macos-latest, rwh_04,rwh_05,rwh_06)	3m 5s
	56m 57s

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