Category watch state (#7109)

* feat: wip, category watch change

* feat: pass data to client

* feat: allow changing state

* fix: account page categories

* fix: show in unread if topic is followed or category is watched

* feat: add default watch state to acp

* feat: save user category watch state

* feat: update unread recent pages

* fix: remove dupe code

* fix: flip conditions

* fix: handle empty arrays

* fix: ignore/watch on others profile

* feat: upgrade script for category states

if there are any users ignoring categories set their state in new zset and delete cid:<cid>:ignorers

* fix: upgrade

* fix: tests

* fix: redis count

* fix: more tests

src/views/admin/settings/user.tpl

@@ -307,6 +307,15 @@
 				</label>
 			</div>
 
+			<div class="form-group">
+				<label>[[admin/settings/user:categoryWatchState]]</label>
+				<select class="form-control" data-field="categoryWatchState">
+					<option value="watching">[[admin/settings/user:categoryWatchState.watching]]</option>
+					<option value="notwatching">[[admin/settings/user:categoryWatchState.notwatching]]</option>
+					<option value="ignoring">[[admin/settings/user:categoryWatchState.ignoring]]</option>
+				</select>
+			</div>
+
 			<label>[[admin/settings/user:default-notification-settings]]</label>
 
 			<!-- BEGIN notificationSettings -->