Moved flatpak files from resources/data to src/platform/unix (#6774)

CMakeLists.txt

@@ -569,7 +569,7 @@ elseif (SLIC3R_FHS)
     # CMAKE_INSTALL_FULL_DATAROOTDIR: read-only architecture-independent data root (share)
     set(SLIC3R_FHS_RESOURCES "${CMAKE_INSTALL_FULL_DATAROOTDIR}/PrusaSlicer")
     install(DIRECTORY ${SLIC3R_RESOURCES_DIR}/ DESTINATION ${SLIC3R_FHS_RESOURCES}
-        PATTERN "*/data" EXCLUDE PATTERN "*/udev" EXCLUDE
+        PATTERN "*/udev" EXCLUDE
     )
     install(FILES src/platform/unix/PrusaSlicer.desktop DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/applications)
     install(FILES src/platform/unix/PrusaGcodeviewer.desktop DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/applications)