style: format code style in Gemfile and controllers

- Adjust spacing around the quotes in the Gemfile
- Standardize spacing in the arts_controller for improved readability
- Modify routes file for consistent array formatting

These changes enhance the consistency of code style across the project without altering any functionality or behavior.

Gemfile

@@ -45,7 +45,7 @@ gem "devise", "~> 4.9"
 gem "activeadmin", "~> 3.2"
 gem "friendly_id", "~> 5.5"
 
-gem 'kaminari', '~> 1.2'
+gem "kaminari", "~> 1.2"
 
 # gem "whenever", "~> 1.0"
 gem "ruby-openai", "~> 7.3"

app/controllers/arts_controller.rb

@@ -10,7 +10,7 @@ class ArtsController < ApplicationController
                                    .where(countries: { region_id: @current_region.id })
     end
 
-    @weather_arts = if params[:sort] == 'oldest'
+    @weather_arts = if params[:sort] == "oldest"
                       @weather_arts.order(created_at: :asc)
     else
                       @weather_arts.order(created_at: :desc)