New Client Configurations

Features and Fixes

Discard diagnostics in a few cases (#1816) (Raoul Wols)
Allow lists in env dict of client configuration (#1815) (Raoul Wols)
Remember the cwd for plugins (#1814) (Raoul Wols)
Re-evaluate what langservers to attach when the URI scheme changes (#1813) (Raoul Wols)
Include the list of key bindings (shortcuts) in the documentation (#1805) (Rafał Chłodnicki)
remove implementation status from docs as it is only developer related (Predrag Nikolic)
Rewrite / reorganize the troubleshooting documentation (#1802) (Rafał Chłodnicki)
Make hover popup also follow the show_diagnostics_severity_level setting (#1798) (Rafał Chłodnicki)
Improve keyboard shortcuts documentation (#1799) (Rafał Chłodnicki)
Update client configuration documentation (Rafal Chlodnicki)
Fix UNC paths on Windows (Raoul Wols)
Fix mypy type issue on windows (#1786) (Raoul Wols)
LSP-Serenata doesn't support ST4 (Luca Pomero)