Update tutorial to 250822 FHI-aims version
- Update output files and relevant text to reflect the new FHI-aims version 250822
- Move the 240920 version to older_versions
- Move the convergence of DOS calculations to an appendix
- Remove the Si
dos_kgrid_factorscalculation from the text, it just duplicated what is shown by GaAs. Keep the output files though. - Add ability to copy to clipboard from text boxes.