fix: reload language server client on restart #420
Merged
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Ensure the client watcher and output channel are disposed during a restart before the new client is creates, and also show a helper warning when certain variables are changed that require a restart.
Also catch errors starting the client, so that our restart configuration change handler is still registered in case the user fixes their serverPath or something like that. Similarly, always register the restart command in case user wants to start using language server after
not using it before.
Closes #419