[pavog]

[16:52:55 WARN]: [Configurations] Could not save config/paper-global.yml: Paper could not persist the full set of configuration settings in the configuration file. Any setting missing from the configuration file will be set with its default value in memory. Admins should make sure to review the configuration documentation at https://docs.papermc.io/paper/configuration for more details.
org.spongepowered.configurate.ConfigurateException: []: java.nio.file.AccessDeniedException: /home/container/config/.118220814970875303942195paper-global.yml.tmp

When Paper cannot save one of its configuration files, it logs this warning and keeps settings that are missing from the file only in memory.
This was not detected before.
This PR adds a problem that names the affected file and suggests checking its permissions.

Paper only logs this warning for an AccessDeniedException; other save errors are thrown, so the pattern anchors on the fixed Paper text and captures only the path.
The exception is about a temporary file next to the configuration file, because Configurate saves atomically, so the solution names the configuration file from the message rather than the temporary file.
The existing PaperCheckPermissionsSolution is reused instead of adding a new solution.
The problem is registered on Paper, so Folia inherits it; Spigot and Bukkit don't have this message.

Changes

• add ConfigNotWritableProblem for Paper
• register it in PaperAnalyser
• add paper-config-not-writable-problem translation
• add paper-config-not-writable-26-3.log fixture