Update various outddated homepage references

[mweinelt]

Description of changes

Squashing some bugs.

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[github-actions]

Backport failed for release-24.05, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin release-24.05
git worktree add -d .worktree/backport-320380-to-release-24.05 origin/release-24.05
cd .worktree/backport-320380-to-release-24.05
git switch --create backport-320380-to-release-24.05
git cherry-pick -x 0f5b04859037f59a0df1dd7e62cba4994b6f1ed3 e3a9b942b8b49cda4cfe046bd6c426f5cdd405ce 5b7eece87ae950a6dda9af3e611ee5b039adca3b