Update text for restricting integration management to admins (#3962)

Update text for restricting integration management to admins

webapp/components/admin_console/custom_integrations_settings.jsx

@@ -128,13 +128,13 @@ export default class WebhookSettings extends AdminSettings {
                     label={
                         <FormattedMessage
                             id='admin.service.integrationAdmin'
-                            defaultMessage='Restrict creating integrations to Team and System Admins: '
+                            defaultMessage='Restrict managing integrations to Admins:'
                         />
                     }
                     helpText={
                         <FormattedMessage
                             id='admin.service.integrationAdminDesc'
-                            defaultMessage='When true, user created integrations can only be created by admins.'
+                            defaultMessage='When true, webhooks and slash commands can only be created, edited and viewed by Team and System Admins, and OAuth 2.0 applications by System Admins. Integrations are available to all users after they have been created by the Admin.'
                         />
                     }
                     value={this.state.enableOnlyAdminIntegrations}

webapp/i18n/en.json

@@ -636,8 +636,8 @@
   "admin.service.iconTitle": "Enable integrations to override profile picture icons:",
   "admin.service.insecureTlsDesc": "When true, any outgoing HTTPS requests will accept unverified, self-signed certificates. For example, outgoing webhooks to a server with a self-signed TLS certificate, using any domain, will be allowed. Note that this makes these connections susceptible to man-in-the-middle attacks.",
   "admin.service.insecureTlsTitle": "Enable Insecure Outgoing Connections: ",
-  "admin.service.integrationAdmin": "Restrict creating integrations to Team and System Admins: ",
-  "admin.service.integrationAdminDesc": "When true, user created integrations can only be created by admins.",
+  "admin.service.integrationAdmin": "Restrict managing integrations to Admins:",
+  "admin.service.integrationAdminDesc": "When true, webhooks and slash commands can only be created, edited and viewed by Team and System Admins, and OAuth 2.0 applications by System Admins. Integrations are available to all users after they have been created by the Admin.",
   "admin.service.listenAddress": "Listen Address:",
   "admin.service.listenDescription": "The address to which to bind and listen. Entering \":8065\" will bind to all interfaces or you can choose one like \"127.0.0.1:8065\".  Changing this will require a server restart before taking effect.",
   "admin.service.listenExample": "Ex \":8065\"",