feature(Project): add ability to create new task groups

web/src/shared/graphql/createTask.graphqls

@@ -1,7 +1,9 @@
 mutation createTask($taskGroupID: String!, $name: String!, $position: Float!) {
   createTask(input: { taskGroupID: $taskGroupID, name: $name, position: $position }) {
     taskID
-    taskGroupID
+    taskGroup {
+      taskGroupID
+    }
     name
     position
   }

web/src/shared/graphql/createTaskGroup.graphqls

@@ -0,0 +1,9 @@
+mutation createTaskGroup( $projectID: String!, $name: String!, $position: Float! ) {
+  createTaskGroup(
+    input: { projectID: $projectID, name: $name, position: $position }
+  ) {
+    taskGroupID
+    name
+    position
+  }
+}