Was failing in the desktop-file validation stage [0]:
/nix/store/XXX-tdm.desktop/share/applications/tdm.desktop: error: value
"False" for boolean key "Terminal" in group "Desktop Entry" contains
invalid characters, boolean values must be "false" or "true"
[0]: https://hydra.nixos.org/build/123852137
According to https://repology.org/repository/nix_unstable/problems, we have a
lot of packages that have http links that redirect to https as their homepage.
This commit updates all these packages to use the https links as their
homepage.
The following script was used to make these updates:
```
curl https://repology.org/api/v1/repository/nix_unstable/problems \
| jq '.[] | .problem' -r \
| rg 'Homepage link "(.+)" is a permanent redirect to "(.+)" and should be updated' --replace 's@$1@$2@' \
| sort | uniq > script.sed
find -name '*.nix' | xargs -P4 -- sed -f script.sed -i
```
