Merge pull request qgis#59271 from m-kuhn/remove_explicit_install_prefix

Remove explicit install prefix

Author: m-kuhn

src/app/CMakeLists.txt

@@ -678,7 +678,7 @@ if (WITH_PDAL)
 endif()
 
 if(MSVC)
-  install(FILES qgis.ico qgis-mime.ico qgis-qgs.ico qgis-qlr.ico qgis-qml.ico qgis-qpt.ico DESTINATION ${CMAKE_INSTALL_PREFIX}/icons)
+  install(FILES qgis.ico qgis-mime.ico qgis-qgs.ico qgis-qlr.ico qgis-qml.ico qgis-qpt.ico DESTINATION icons)
 endif()
 
 install(TARGETS qgis_app