feat: Improve UX to match new mockups

Uses new API features for preview, deleting, pinning, and closing. Refactors and improves styling to match new mockups.
Adds the new post filter bar element.

src/data/constants.js

@@ -41,7 +41,7 @@ export const EndorsementValue = {
  */
 export const ContentActions = {
   EDIT_CONTENT: 'raw_body',
-  PIN: 'pin',
+  PIN: 'pinned',
   ENDORSE: 'endorsed',
   CLOSE: 'closed',
   REPORT: 'abuse_flagged',
@@ -105,10 +105,11 @@ export const MyPostsFilter = {
  * @enum {string}
  */
 export const PostsStatusFilter = {
-  ALL: 'filterAll',
-  UNREAD: 'filterUnread',
-  FOLLOWING: 'filterFollowing',
-  FLAGGED: 'filterFlagged',
+  ALL: 'statusAll',
+  UNREAD: 'statusUnread',
+  FOLLOWING: 'statusFollowing',
+  REPORTED: 'statusReported',
+  UNANSWERED: 'statusUnanswered',
 };
 
 /**
@@ -184,7 +185,8 @@ export const Routes = {
   },
 };
 
-export const ALL_ROUTES = [Routes.DISCUSSIONS.PATH]
+export const ALL_ROUTES = []
   .concat(Routes.COMMENTS.PATH)
   .concat(Routes.TOPICS.PATH)
-  .concat([Routes.POSTS.ALL_POSTS, Routes.POSTS.MY_POSTS]);
+  .concat([Routes.POSTS.ALL_POSTS, Routes.POSTS.MY_POSTS])
+  .concat([Routes.DISCUSSIONS.PATH]);