feat: Memberships (#1032)

* WIP

* feat: Add collection.memberships endpoint

* feat: Add ability to filter collection.memberships with query

* WIP

* Merge stashed work

* feat: Add ability to filter memberships by permission

* continued refactoring

* paginated list component

* Collection member management

* fix: Incorrect policy data sent down after collection.update

* Reduce duplication, add empty state

* cleanup

* fix: Modal close should be a real button

* fix: Allow opening edit from modal

* fix: remove unused methods

* test: fix

* Passing test suite

* Refactor

* fix: Flow UI errors

* test: Add collections.update tests

* lint

* test: moar tests

* fix: Missing scopes, more missing tests

* fix: Handle collection privacy change over socket

* fix: More membership scopes

* fix: view endpoint permissions

* fix: respond to privacy change on socket event

* policy driven menus

* fix: share endpoint policies

* chore: Use policies to drive documents UI

* alignment

* fix: Header height

* fix: Correct behavior when collection becomes private

* fix: Header height for read-only collection

* send id's over socket instead of serialized objects

* fix: Remote policy change

* fix: reduce collection fetching

* More websocket efficiencies

* fix: Document collection pinning

* fix: Restored ability to edit drafts
fix: Removed ability to star drafts

* fix: Require write permissions to pin doc to collection

* fix: Header title overlaying document actions at small screen sizes

* fix: Jank on load caused by previous commit

* fix: Double collection fetch post-publish

* fix: Hide publish button if draft is in no longer accessible collection

* fix: Always allow deleting drafts
fix: Improved handling of deleted documents

* feat: Show collections in drafts view
feat: Show more obvious 'draft' badge on documents

* fix: incorrect policies after publish to private collection

* fix: Duplicating a draft publishes it

server/presenters/slackAttachment.js

@@ -1,5 +1,5 @@
 // @flow
-import { Document, Team } from '../models';
+import { Document, Collection, Team } from '../models';
 
 type Action = {
   type: string,
@@ -10,6 +10,7 @@ type Action = {
 
 export default function present(
   document: Document,
+  collection: Collection,
   team: Team,
   context?: string,
   actions?: Action[]
@@ -21,10 +22,10 @@ export default function present(
     : document.getSummary();
 
   return {
-    color: document.collection.color,
+    color: collection.color,
     title: document.title,
     title_link: `${team.url}${document.url}`,
-    footer: document.collection.name,
+    footer: collection.name,
     callback_id: document.id,
     text,
     ts: document.getTimestamp(),