Provide current-user application-wide

* This change allows us to reuse the current user in multiple places.
* Sentry still receives the same information as before.

app/assets/javascripts/base.js

@@ -36,6 +36,9 @@ $(document).on('turbolinks:load', function() {
         window.location.reload();
     });
 
+    // Set current user
+    window.current_user = JSON.parse($('meta[name="current-user"]')?.attr('content') || null);
+
     // Set locale for all JavaScript functions
     const htmlTag = $('html')
     I18n.defaultLocale = htmlTag.data('default-locale');
@@ -59,10 +62,8 @@ $(document).on('turbolinks:load', function() {
             integrations: window.SentryIntegrations(),
             profilesSampleRate: 1.0,
             initialScope: scope =>{
-                const user = $('meta[name="current-user"]').attr('content');
-
-                if (user) {
-                    scope.setUser(JSON.parse(user));
+                if (current_user) {
+                    scope.setUser(_.omit(current_user, 'displayname'));
                 }
                 return scope;
             }

app/models/user.rb

@@ -84,11 +84,12 @@ class User < ApplicationRecord
     displayname
   end
 
-  def to_sentry_context
+  def to_page_context
     {
       id:,
       type: self.class.name,
       consumer: consumer.name,
+      displayname:,
     }
   end
 

app/views/layouts/application.html.slim

@@ -16,7 +16,7 @@ html lang="#{I18n.locale || I18n.default_locale}" data-default-locale="#{I18n.de
     = yield(:head)
     = csrf_meta_tags
     meta name='sentry' data-enabled=SentryJavascript.active?.to_s data-release=SentryJavascript.release data-dsn=SentryJavascript.dsn data-environment=SentryJavascript.environment
-    meta name='current-user' content=current_user&.to_sentry_context&.to_json
+    meta name='current-user' content=current_user&.to_page_context&.to_json
   body
     - unless @embed_options[:hide_navbar]
       nav.navbar.bg-dark.navbar-expand-md.mb-4.py-1 role='navigation' data-bs-theme="dark"