It seems when native-comp is used, the kill-buffer-hook in json-snatcher
is registered, even though the library itself isn't registered. And the
`jsons-remove-buffer` function does not have a autoload declaration.
Hence we use use-package to manually create a autoload for the function.
- Switch from highlight-indentation package to highlight-indent-guides.
- Activate visual indentation in a prog-mode hook, rather than doing
within each individual major mode. It was already done within all
major modes based on prog-mode anyway.
- Add new siren-display-indetation module and function as a central way
to enable visual indetation guides. This makes switching the
underlying package at some point in the future much easier.
