add shadow-muting chat hiding feature (automatic flagging of public posts from shadow-muted players) - fixes 10851 (#11239)

* move existing tests for chatRevoked users to 'mute user' describe block

* give consistent names to chatRevoked tests and use const not let

* improve methods for restoring chat permissions to test users

* add tests for shadow-muting and define constants for flag-related numbers

* update user profile URLs and reverse private/public 'if' statements

* implement shadow muting in the API and schemas

* add interface for mods to turn shadow muting on/off for a user

- checkbox in the Hall
- icon in the user's profile

* mark chat posts as being shadow muted (marking is visible to mods only)

* convert Admin Tools in profile from icons to text; make crown icon a toggle

* move logic for displaying flag count to a computed property

* prevent chat notifications for shadow-muted posts

website/server/controllers/api-v3/hall.js

@@ -145,7 +145,7 @@ api.getHeroes = {
 // Note, while the following routes are called getHero / updateHero
 // they can be used by admins to get/update any user
 
-const heroAdminFields = 'contributor balance profile.name purchased items auth flags.chatRevoked';
+const heroAdminFields = 'contributor balance profile.name purchased items auth flags.chatRevoked flags.chatShadowMuted';
 
 /**
  * @api {get} /api/v3/hall/heroes/:heroId Get any user ("hero") given the UUID or Username
@@ -213,7 +213,10 @@ const gemsPerTier = {1: 3, 2: 3, 3: 3, 4: 4, 5: 4, 6: 4, 7: 4, 8: 0, 9: 0};
  * {
  *    "balance": 1000,
  *    "auth": {"blocked": false},
- *    "flags": {"chatRevoked": true},
+ *    "flags": {
+ *      "chatRevoked": true,
+ *      "chatShadowMuted": true
+ *    },
  *    "purchased": {"ads": true},
  *    "contributor": {
  *      "admin": true,
@@ -286,6 +289,7 @@ api.updateHero = {
     }
 
     if (updateData.flags && _.isBoolean(updateData.flags.chatRevoked)) hero.flags.chatRevoked = updateData.flags.chatRevoked;
+    if (updateData.flags && _.isBoolean(updateData.flags.chatShadowMuted)) hero.flags.chatShadowMuted = updateData.flags.chatShadowMuted;
 
     let savedHero = await hero.save();
     let heroJSON = savedHero.toJSON();