Fix UseCorrectCasing to be actually configurable via"powershell.codeFormatting.useCorrectCasing" (#910)

* Make UseCorrectCasing configurable as "powershell.codeFormatting.useCorrectCasing" was not propagated correctly to PSES

* re-trigger ci

* remove global.json

Author: bergmeister

src/PowerShellEditorServices.Protocol/Server/LanguageServerSettings.cs

@@ -289,7 +289,7 @@ private Hashtable GetCustomPSSASettingsHashtable(int tabSize, bool insertSpaces)
                         {"CheckHashtable", AlignPropertyValuePairs}
                     }},
                     {"PSUseCorrectCasing", new Hashtable {
-                        {"Enable", true}
+                        {"Enable", UseCorrectCasing}
                     }},
                 }}
             };