10 Improve template variants formatting

[moronip81]

part of #10

[moronip81]

@danielinteractive: Still work in progress... Next: find a way to not list "Setup" page in the sidebar, eventually switch to manual list generation if no flag available

[danielinteractive]

@moronip81 please check out https://github.com/quarto-dev/quarto-cli/discussions/3951 that looks promising

[moronip81]

@danielinteractive renamed the setup.qmd into CMT2 subfolder as requested I see now the warning that the two cmt2 files are conflicting, should I just click on Resolve conflicts and see what happens?

[danielinteractive]

Yes, try to resolve the conflicts like that