feat: refactor code organization and query complexity

- Simplify query for most popular inactive cities in City model
    - Minor layout changes in Admin Dashboards for Ahoy and Sidekiq tasks

    This refactoring improves code organization, reducing complexity in the City model and making it easier to read. Additionally, the Admin dashboard layouts have been simplified for a better user experience.

app/admin/ahoy_dashboard.rb

@@ -61,6 +61,5 @@ ActiveAdmin.register_page "Ahoy Dashboard" do
         column :properties
       end
     end
-
   end
 end

app/admin/sidekiq_jobs.rb

@@ -75,8 +75,6 @@ ActiveAdmin.register_page "Sidekiq Tasks" do
           end
         end
       end
-
-
     end
   end
 

app/models/city.rb

@@ -54,7 +54,7 @@ class City < ApplicationRecord
     end
   }
   scope :most_popular_inactive, -> {
-    if ActiveRecord::Base.connection.adapter_name.downcase == 'sqlite'
+    if ActiveRecord::Base.connection.adapter_name.downcase == "sqlite"
       where(active: false)
         .joins("LEFT JOIN ahoy_events ON json_extract(ahoy_events.properties, '$.city_id') = cities.id
                AND json_extract(ahoy_events.properties, '$.event_type') = 'city_view'")