PLT-2713/PLT-6028 Added System Users list to System Console (#5882)

* PLT-2713 Added ability for admins to list users not in any team

* Updated style of unit test

* Split SearchableUserList to give better control over its properties

* Added users without any teams to the user store

* Added ManageUsers page

* Renamed ManageUsers to SystemUsers

* Added ability to search by user id in SystemUsers page

* Added SystemUsersDropdown

* Removed unnecessary injectIntl

* Created TeamUtils

* Reduced scope of system console heading CSS

* Added team filter to TeamAnalytics page

* Updated admin console sidebar

* Removed unnecessary TODO

* Removed unused reference to deleted modal

* Fixed system console sidebar not scrolling on first load

* Fixed TeamAnalytics page not rendering on first load

* Fixed chart.js throwing an error when switching between teams

* Changed TeamAnalytics header to show the team's display name

* Fixed appearance of TeamAnalytics and SystemUsers on small screen widths

* Fixed placement of 'No users found' message

* Fixed teams not appearing in SystemUsers on first load

* Updated user count text for SystemUsers

* Changed search by id fallback to trigger less often

* Fixed SystemUsers list items not updating when searching

* Fixed localization strings for SystemUsers page

webapp/utils/constants.jsx

@@ -98,6 +98,7 @@ export const ActionTypes = keyMirror({
     RECEIVED_PROFILE: null,
     RECEIVED_PROFILES_IN_CHANNEL: null,
     RECEIVED_PROFILES_NOT_IN_CHANNEL: null,
+    RECEIVED_PROFILES_WITHOUT_TEAM: null,
     RECEIVED_ME: null,
     RECEIVED_SESSIONS: null,
     RECEIVED_AUDITS: null,
@@ -205,7 +206,8 @@ export const UserStatuses = {
 };
 
 export const UserSearchOptions = {
-    ALLOW_INACTIVE: 'allow_inactive'
+    ALLOW_INACTIVE: 'allow_inactive',
+    WITHOUT_TEAM: 'without_team'
 };
 
 export const SocketEvents = {
@@ -253,6 +255,29 @@ export const PostTypes = {
     EPHEMERAL: 'system_ephemeral'
 };
 
+export const StatTypes = keyMirror({
+    TOTAL_USERS: null,
+    TOTAL_PUBLIC_CHANNELS: null,
+    TOTAL_PRIVATE_GROUPS: null,
+    TOTAL_POSTS: null,
+    TOTAL_TEAMS: null,
+    TOTAL_FILE_POSTS: null,
+    TOTAL_HASHTAG_POSTS: null,
+    TOTAL_IHOOKS: null,
+    TOTAL_OHOOKS: null,
+    TOTAL_COMMANDS: null,
+    TOTAL_SESSIONS: null,
+    POST_PER_DAY: null,
+    USERS_WITH_POSTS_PER_DAY: null,
+    RECENTLY_ACTIVE_USERS: null,
+    NEWLY_CREATED_USERS: null,
+    TOTAL_WEBSOCKET_CONNECTIONS: null,
+    TOTAL_MASTER_DB_CONNECTIONS: null,
+    TOTAL_READ_DB_CONNECTIONS: null,
+    DAILY_ACTIVE_USERS: null,
+    MONTHLY_ACTIVE_USERS: null
+});
+
 export const Constants = {
     Preferences,
     SocketEvents,
@@ -269,28 +294,7 @@ export const Constants = {
         VIEW_ACTION: null
     }),
 
-    StatTypes: keyMirror({
-        TOTAL_USERS: null,
-        TOTAL_PUBLIC_CHANNELS: null,
-        TOTAL_PRIVATE_GROUPS: null,
-        TOTAL_POSTS: null,
-        TOTAL_TEAMS: null,
-        TOTAL_FILE_POSTS: null,
-        TOTAL_HASHTAG_POSTS: null,
-        TOTAL_IHOOKS: null,
-        TOTAL_OHOOKS: null,
-        TOTAL_COMMANDS: null,
-        TOTAL_SESSIONS: null,
-        POST_PER_DAY: null,
-        USERS_WITH_POSTS_PER_DAY: null,
-        RECENTLY_ACTIVE_USERS: null,
-        NEWLY_CREATED_USERS: null,
-        TOTAL_WEBSOCKET_CONNECTIONS: null,
-        TOTAL_MASTER_DB_CONNECTIONS: null,
-        TOTAL_READ_DB_CONNECTIONS: null,
-        DAILY_ACTIVE_USERS: null,
-        MONTHLY_ACTIVE_USERS: null
-    }),
+    StatTypes,
     STAT_MAX_ACTIVE_USERS: 20,
     STAT_MAX_NEW_USERS: 20,