cleanup: Make it harder to forget to close settings groups. #2062

Job	Run time
Verify release/signatures	0s
Validate PR	1s
Check for translatable strings	0s
Alpine (static)	0s
Fedora with ASAN	0s
Debian	0s
Alpine	0s
macOS user	0s
Ubuntu LTS	0s
Clang-Tidy	0s
Update nightly release tag	6s
Docs	2m 45s
Windows (i686, Debug)	5m 6s
AppImage on Alpine (full, Release)	2m 0s
Windows (i686, Release)	5m 33s
Flatpak	3m 2s
Android (armeabi-v7a, Debug, 6.2.4)	2m 56s
Windows (x86_64, Debug)	5m 48s
Android (armeabi-v7a, Debug, 6.8.1)	3m 2s
Windows (x86_64, Release)	5m 30s
macOS distributable (arm64)	2m 38s
Android (armeabi-v7a, Release, 6.2.4)	2m 35s
macOS distributable (x86_64)	4m 15s
Android (armeabi-v7a, Release, 6.8.1)	2m 54s
Android (arm64-v8a, Debug, 6.2.4)	2m 42s
Android (arm64-v8a, Debug, 6.8.1)	3m 22s
Android (arm64-v8a, Release, 6.2.4)	2m 45s
Android (arm64-v8a, Release, 6.8.1)	3m 0s
Test AppImage	26s
Test Flatpak	1m 5s
Test macOS distributable (arm64)	32s
Test macOS distributable (x86_64)	53s
Test Windows (i686, Release)	39s
Test Windows (x86_64, Release)	51s
	1h 4m 26s

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