Build

`gui/mod-manager`: Add a window showing the active mods in a world #5709

Job	Run time
docs / Build linux64	1m 7s
lint / lint	27s
test / Windows MSVC / Build win64	21m 54s
test / Linux gcc-10 / Build linux64	5m 17s
test / Linux gcc-12 / Build linux64	6m 47s
test / Run Linux test suite (gcc-12, all plugins) / Test (ubuntu, gcc-12, all plugins, default config)	45s
test / Run Linux test suite / Test (ubuntu, gcc-10, default plugins, default config)	1m 11s
test / Run Windows test suite / Test (windows, msvc, default plugins, default config)	53s
test / Run Windows test suite (empty config) / Test (windows, msvc, default plugins, empty config)	1m 9s
	39m 30s

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