Make Cue notes property null-safe

QControlKit/QControlKit.csproj

@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Serilog" Version="2.9.0" />
+    <PackageReference Include="Serilog" Version="2.10.0" />
     <PackageReference Include="Zeroconf" Version="3.4.2" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
   </ItemGroup>

QControlKit/QCue.cs

@@ -239,7 +239,10 @@ namespace QControlKit
         {
             get
             {
-                return propertyForKey(QOSCKey.Notes).ToString();
+                if (propertyForKey(QOSCKey.Notes) != null)
+                    return propertyForKey(QOSCKey.Notes).ToString();
+                else
+                    return "";
             }
             set
             {
@@ -568,7 +571,6 @@ namespace QControlKit
 
             if (!cueUpdated)
                 return false;
-            
             OnCuePropertiesUpdated(propertiesUpdated);
             return true;
         }

QControlKit/QWorkspace.cs

@@ -342,7 +342,7 @@ namespace QControlKit
             string[] keys = new string[] {  QOSCKey.Name, QOSCKey.Number, QOSCKey.FileTarget, QOSCKey.CueTargetNumber, 
                                             QOSCKey.HasFileTargets, QOSCKey.HasCueTargets, QOSCKey.Armed, QOSCKey.ColorName, 
                                             QOSCKey.ContinueMode, QOSCKey.Flagged, QOSCKey.PreWait, QOSCKey.PostWait, 
-                                            QOSCKey.Duration, QOSCKey.AllowsEditingDuration };
+                                            QOSCKey.Duration, QOSCKey.AllowsEditingDuration, QOSCKey.Notes };
             fetchPropertiesForCue(cue, keys, false);
         }