[lib] Update id constants

Summary:
[ENG-4595](https://linear.app/comm/issue/ENG-4595)
Not all ids were converted

Test Plan:
- for `bots.js` -> added a `console.log` in keyserver and web code and checked that only web had a prefix
- for `comm-staff-community` (I replaced `311733` with id of one of communities on my dev env for testing)
  - checked `id: '311733',` sent an image on web, confirmed that there is no "encryptionKey" in `extra` column in uploads
  - checked `id: process.env['KEYSERVER'] ? '311733' : '256|311733',` sent an image on web, confirmed that there is "encryptionKey"
- Searched for `id: '`, `id = '`, `'1`, `'2` etc. (case insensitive) and checked if there are any other constants
- Checked files in `facts/` for any id constants

Reviewers: tomek, bartek

Reviewed By: tomek, bartek

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D8745

lib/facts/bots.js

@@ -10,7 +10,7 @@ type Bots = {
 const bots: Bots = {
   commbot: {
     userID: '5',
-    staffThreadID: '83794',
+    staffThreadID: process.env['KEYSERVER'] ? '83794' : '256|83794',
   },
 };
 

lib/facts/comm-staff-community.js

@@ -5,7 +5,7 @@ type CommStaffCommunity = {
 };
 
 const commStaffCommunity: CommStaffCommunity = {
-  id: '311733',
+  id: process.env['KEYSERVER'] ? '311733' : '256|311733',
 };
 
 export default commStaffCommunity;