New app: Czech Diacritic Keyboard

• The app complies with the inclusion criteria
• The original app author has been notified (and supports the inclusion)
• All related fdroiddata and rfp issues have been referenced in this merge request
• I've considered adding parts of the metadata to the app repo in order to add screenshots and have a translatable description
• Builds with fdroid build

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I am having a little problem with building the app using fdroid build. Not sure if it is problem only on my machine, but error makes no sense and I am unable to fix it. Any help is welcome.

fdroid build error on my machine (running Ubuntu subsystem on Windows 10) - interesting part of the log:

ERROR: Could not build app cz.vitSkalicky.klavesnice: Error cleaning cz.vitSkalicky.klavesnice:0.1
==== detail begin ====
Found 4.8 via distributionUrl
Running /root/.cache/fdroidserver/gradle/4.8/bin/gradle clean
Starting a Gradle Daemon, 1 incompatible and 1 stopped Daemons could not be reused, use --status for details

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':java'.
> Cannot read packageName from /AndroidManifest.xml

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1m 21s
==== detail end ====
INFO: Build for app cz.vitSkalicky.klavesnice failed:
Error cleaning cz.vitSkalicky.klavesnice:0.1