CMake: Use library aliases instead of library names

[kobalicek]

This changeset makes it possible to compile hyprlang with a custom install prefix, which was not honored because of using "hyprutils" as a raw dependency, which means that CMake was adding "-lhyprutils" flag to the linker, but the linker didn't know the path in case a custom install prefix was used to compile hyprutils.

[vaxerski]

why?

[kobalicek]

If you install hyprutils to /opt/hyprland, for example, and use the same install prefix to build hyprlang, it will fail to link hyprlang_test and hyprlang_fuzz because it only passes the library name to the linker, but not the path:

target_link_libraries(hyprlang_fuzz PRIVATE hyprlang hyprutils)

This means passing -lhyprlang -lhyprutils to the linker, but not the prefix path, which is essential if it's not the default.

However, if you use the namespaced alias hyprland::xxx then cmake sees it as a dependency and passes correct link flags to the linker, including library paths, so it would also pass -L/opt/hyprland and would link correctly.

[vaxerski]

makes sense, would be better to call the namespace hypr tho

[kobalicek]

Done