Remove unused controller code

And update translations

app/controllers/jira_connect/users_controller.rb

 # frozen_string_literal: true
 
 class JiraConnect::UsersController < ApplicationController
-  before_action :clear_flash, only: :show
+  feature_category :integrations
 
   layout 'devise_experimental_onboarding_issues'
 
   def show
   end
-
-  private
-
-  def clear_flash
-    flash[:alert] = nil
-  end
 end

app/views/jira_connect/users/show.html.haml

@@ -2,7 +2,7 @@
   - user_link_start = '<a href="%{url}" target="_blank" rel="noopener noreferrer">'.html_safe % { url: user_path(current_user) }
   %h2= _('You are signed into GitLab as %{user_link_start}%{username}%{user_link_end}.').html_safe % { user_link_start: user_link_start, username: current_user.to_reference, user_link_end: '</a>'.html_safe }
 
-  %p= _('You can now close this window and return to the GitLab for Jira application.')
+  %p= s_('Integrations|You can now close this window and return to the GitLab for Jira application.')
 
   %p= link_to _('Sign out'), destroy_user_session_path, method: :post
 

changelogs/unreleased/235888-gitlab-for-jira-app-should-display-who-is-logged-in.yml

+---
+title: Add user sign in indicator to Jira connect app
+merge_request: 42628
+author:
+type: changed

locale/gitlab.pot

@@ -14096,6 +14096,9 @@ msgstr ""
 msgid "Integrations|When a Jira issue is mentioned in a commit or merge request a remote link and comment (if enabled) will be created."
 msgstr ""
 
+msgid "Integrations|You can now close this window and return to the GitLab for Jira application."
+msgstr ""
+
 msgid "Interested parties can even contribute by pushing commits if they want to."
 msgstr ""
 
@@ -29728,6 +29731,9 @@ msgstr ""
 msgid "You are receiving this message because you are a GitLab administrator for %{url}."
 msgstr ""
 
+msgid "You are signed into GitLab as %{user_link_start}%{username}%{user_link_end}."
+msgstr ""
+
 msgid "You are trying to upload something other than an image. Please upload a .png, .jpg, .jpeg, .gif, .bmp, .tiff or .ico."
 msgstr ""