Basic discussions forum framework

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

src/discussions/topics/data/thunks.js

@@ -0,0 +1,17 @@
+/* eslint-disable import/prefer-default-export */
+import { logError } from '@edx/frontend-platform/logging';
+import { getCourseTopics } from './api';
+import { fetchCourseTopicsFailed, fetchCourseTopicsRequest, fetchCourseTopicsSuccess } from './slices';
+
+export function fetchCourseTopics(courseId) {
+  return async (dispatch) => {
+    try {
+      dispatch(fetchCourseTopicsRequest({ courseId }));
+      const data = await getCourseTopics(courseId);
+      dispatch(fetchCourseTopicsSuccess(data));
+    } catch (error) {
+      dispatch(fetchCourseTopicsFailed());
+      logError(error);
+    }
+  };
+}