Fix a bug when milestone/label filter was empty for dashboard issues page

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

CHANGELOG

@@ -42,6 +42,7 @@ v 8.2.0 (unreleased)
   - Ability to add release notes (markdown text and attachments) to git tags (aka Releases)
   - Relative links from a repositories README.md now link to the default branch
   - Fix trailing whitespace issue in merge request/issue title
+  - Fix bug when milestone/label filter was empty for dashboard issues page
 
 v 8.1.4
   - Fix bug where manually merged branches in a MR would end up with an empty diff (Stan Hu)

app/controllers/dashboard_controller.rb

 class DashboardController < Dashboard::ApplicationController
   before_action :event_filter, only: :activity
+  before_action :projects, only: [:issues, :merge_requests]
 
   respond_to :html
 
@@ -47,4 +48,8 @@ class DashboardController < Dashboard::ApplicationController
     @events = @event_filter.apply_filter(@events).with_associations
     @events = @events.limit(20).offset(params[:offset] || 0)
   end
+
+  def projects
+    @projects ||= current_user.authorized_projects.sorted_by_activity.non_archived
+  end
 end