Basic discussions forum framework

Adds the basic structure for the Discussions MFE around which future development
will happen.

src/discussions/posts/data/thunks.js

@@ -0,0 +1,17 @@
+/* eslint-disable import/prefer-default-export */
+import { logError } from '@edx/frontend-platform/logging';
+import { getCourseThreads } from './api';
+import { fetchCourseThreadsFailed, fetchCourseThreadsRequest, fetchCourseThreadsSuccess } from './slices';
+
+export function fetchCourseThreads(courseId, topicIds) {
+  return async (dispatch) => {
+    try {
+      dispatch(fetchCourseThreadsRequest({ courseId }));
+      const data = await getCourseThreads(courseId, topicIds);
+      dispatch(fetchCourseThreadsSuccess(data));
+    } catch (error) {
+      dispatch(fetchCourseThreadsFailed());
+      logError(error);
+    }
+  };
+}