[qt_common] Fix system frozen target (#2758)

When installled the frozen package exports `frozen::frozen-headers`, not
`frozen::frozen` target.

Signed-off-by: Marcin Serwin <marcin@serwin.dev>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2758
Co-authored-by: Marcin Serwin <marcin@serwin.dev>
Co-committed-by: Marcin Serwin <marcin@serwin.dev>

src/qt_common/CMakeLists.txt

@@ -66,8 +66,10 @@ target_compile_definitions(qt_common PUBLIC
 
 add_subdirectory(externals)
 
+find_package(frozen REQUIRED)
+
 target_link_libraries(qt_common PRIVATE core Qt6::Core Qt6::Concurrent SimpleIni::SimpleIni QuaZip::QuaZip)
-target_link_libraries(qt_common PUBLIC frozen::frozen)
+target_link_libraries(qt_common PUBLIC frozen::frozen-headers)
 
 if (NOT APPLE AND ENABLE_OPENGL)
     target_compile_definitions(qt_common PUBLIC HAS_OPENGL)