docs/macos/README.md: delete the paragraphs naming LGUG2Z/komorebi-for-mac as the
public release repository and KomoCorp/komorebi-for-mac as a private repository
for certain sponsor tiers with nightly releases (the private repository is retired
and nothing replaces it); add the one policy paragraph to its sponsorship section.
docs/macos/index.md: the same policy paragraph.
docs/macos/installation.md: OWNER markers only, on the Nix flake section that adds
the private repository as an input and on the nightly Homebrew line; text left
as it was because the replacement is the owner's decision.
Not verified beyond reading the diff.
komorebi-for-kde/docs/ -> docs/linux/
komorebi-for-mac/docs/ -> docs/macos/
The Windows docs stay where they are (docs/). Renames only, so links and include paths
that named the old directories are broken at this revision; they are fixed in the revision
that fixes the paths of the whole layout move.
LGUG2Z