Add TaskRunner to vscode build tasks (#1075)

.vscode/tasks.json

@@ -57,6 +57,20 @@
                 "cwd": "${workspaceFolder}/apps/server/Services/AliasVault.SmtpService"
             }
         },
+        {
+            "label": "Build and watch TaskRunner",
+            "type": "shell",
+            "command": "dotnet watch",
+            "args": [],
+            "problemMatcher": [],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "options": {
+                "cwd": "${workspaceFolder}/apps/server/Services/AliasVault.TaskRunner"
+            }
+        },
         {
             "label": "Build and watch Client CSS",
             "type": "shell",