Move subscription from all clients to template creation

packages/rocketchat-oauth2-server-config/admin/client/startup.coffee

-Meteor.subscribe 'oauthApps'
-
 RocketChat.AdminBox.addOption
 	href: 'admin-oauth-apps'
 	i18nLabel: 'OAuth Apps'

packages/rocketchat-oauth2-server-config/admin/client/views/oauthApp.coffee

 Template.oauthApp.onCreated ->
+	@subscribe 'oauthApps'
 	@record = new ReactiveVar
 		active: true
 

packages/rocketchat-oauth2-server-config/admin/client/views/oauthApps.coffee

+Template.oauthApps.onCreated ->
+	@subscribe 'oauthApps'
+
 Template.oauthApps.helpers
 	hasPermission: ->
 		return RocketChat.authz.hasAllPermission 'manage-oauth-apps'