Diagram server does not work if there are spaces in the path

[edwardalee]

If you put your src directory inside a directory whose name has spaces, then the diagram server does not work. When you try to "Show all Details" you get the following error message:

java.lang.IllegalStateException: The diagram server is not set up correctly.\     at de.cau.cs.kieler.klighd.lsp.KGraphLanguageServerExtension.performAction(KGraphLanguageServerExtension.java:397)\     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)\     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\     at java.base/java.lang.reflect.Method.invoke(Method.java:568)\     at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$recursiveFindRpcMethods$0(GenericEndpoint.java:65)\     at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.notify(GenericEndpoint.java:152)\     at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleNotific...