Convert PsesConfigurationHandler to inherit DidChangeConfigurationHandlerBase

Except for `TelemetryEventParams` changes, saving for later.

Author: andyleejordan

src/PowerShellEditorServices/Services/Workspace/Handlers/ConfigurationHandler.cs

@@ -22,14 +22,13 @@
 
 namespace Microsoft.PowerShell.EditorServices.Handlers
 {
-    internal class PsesConfigurationHandler : IDidChangeConfigurationHandler
+    internal class PsesConfigurationHandler : DidChangeConfigurationHandlerBase
     {
         private readonly ILogger _logger;
         private readonly WorkspaceService _workspaceService;
         private readonly ConfigurationService _configurationService;
         private readonly PowerShellContextService _powerShellContextService;
         private readonly ILanguageServerFacade _languageServer;
-        private DidChangeConfigurationCapability _capability;
         private bool _profilesLoaded;
         private bool _consoleReplStarted;
         private bool _cwdSet;
@@ -50,12 +49,7 @@ public PsesConfigurationHandler(
             ConfigurationUpdated += analysisService.OnConfigurationUpdated;
         }
 
-        public object GetRegistrationOptions()
-        {
-            return null;
-        }
-
-        public async Task<Unit> Handle(DidChangeConfigurationParams request, CancellationToken cancellationToken)
+        public override async Task<Unit> Handle(DidChangeConfigurationParams request, CancellationToken cancellationToken)
         {
             LanguageServerSettingsWrapper incomingSettings = request.Settings.ToObject<LanguageServerSettingsWrapper>();
             if(incomingSettings == null)
@@ -207,11 +201,6 @@ private void SendFeatureChangesTelemetry(LanguageServerSettingsWrapper incomingS
             });
         }
 
-        public void SetCapability(DidChangeConfigurationCapability capability)
-        {
-            _capability = capability;
-        }
-
         public event EventHandler<LanguageServerSettings> ConfigurationUpdated;
     }
 }