Add sprockets for wickedPDF

Author: Kagemaru

Gemfile

@@ -76,6 +76,7 @@ gem 'pry-byebug'
 gem 'pry-rails'
 gem 'puma'
 gem 'sentry-raven'
+gem 'sprockets-rails'
 gem 'uglifier'
 
 group :development, :test do

Gemfile.lock

@@ -993,6 +993,14 @@ GEM
     spring-watcher-listen (2.1.0)
       listen (>= 2.7, < 4.0)
       spring (>= 4)
+    sprockets (4.2.2)
+      concurrent-ruby (~> 1.0)
+      logger
+      rack (>= 2.2.4, < 4)
+    sprockets-rails (3.5.2)
+      actionpack (>= 6.1)
+      activesupport (>= 6.1)
+      sprockets (>= 3.0.0)
     stringio (3.1.7)
     swd (1.3.0)
       activesupport (>= 3)
@@ -1116,6 +1124,7 @@ DEPENDENCIES
   puma
   rubocop
   sentry-raven
+  sprockets-rails
   uglifier
   web-console