Improvements for F-Droid

[onitake]

I hope it's ok to contact you in English. My Japanese level isn't very good, and it will be easier for other F-Droid maintainers to read. You can respond in Japanese if you prefer.

nicoWnnG was introduced to F-Droid in 2012, but there were no updates since 2014. The source code was maintained in a forked repository on Bitbucket, which is unfortunately no longer available.
I noticed that you started publishing new nicoWnnG releases in 2023, and that the source code is now available on GitHub. Thank you very much for that!

To benefit from your improvements (modern Android support in particular), I opened a merge request on the F-Droid data repository to update nicoWnnG to the latest version: https://gitlab.com/fdroid/fdroiddata/-/merge_requests/15058

The automatic build and verification was successful, but there are a few things that can still be improved:

1. Your repository has no tags. If you add a Git tag to each release, it will be possible to publish new versions automatically to F-Droid.
2. You could add Fastlane metadata to your GitHub repository. This will make it easier to process updates and include correct translations of all application metadata. Fastlane is a separate tool that allows automatic publishing to Google Play. F-Droid does not use this tool, but it supports the same metadata format. See this page for more information.