Switch to propshaft as assets pipeline

Gemfile

@@ -6,8 +6,8 @@ ruby '~> 3.3.0'
 # Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
 gem 'rails', '~> 8.0.0'
 
-# The original asset pipeline for Rails [https://github.com/rails/sprockets-rails]
-gem 'sprockets-rails'
+# Use propshaft as asset pipeline
+gem 'propshaft'
 
 # Use postgresql as the database for Active Record
 gem 'pg', '~> 1.5'

Gemfile.lock

@@ -197,6 +197,11 @@ GEM
       ast (~> 2.4.1)
       racc
     pg (1.5.9)
+    propshaft (1.1.0)
+      actionpack (>= 7.0.0)
+      activesupport (>= 7.0.0)
+      rack
+      railties (>= 7.0.0)
     psych (5.1.2)
       stringio
     public_suffix (5.0.4)
@@ -293,13 +298,6 @@ GEM
       fugit (~> 1.11.0)
       railties (>= 7.1)
       thor (~> 1.3.1)
-    sprockets (4.2.1)
-      concurrent-ruby (~> 1.0)
-      rack (>= 2.2.4, < 4)
-    sprockets-rails (3.5.2)
-      actionpack (>= 6.1)
-      activesupport (>= 6.1)
-      sprockets (>= 3.0.0)
     stringio (3.1.1)
     thor (1.3.2)
     thread_safe (0.3.6)
@@ -342,6 +340,7 @@ DEPENDENCIES
   github_api
   jbuilder
   pg (~> 1.5)
+  propshaft
   puma (~> 6.4)
   rack-cors
   rails (~> 8.0.0)
@@ -352,7 +351,6 @@ DEPENDENCIES
   sentry-rails
   sentry-ruby
   solid_queue
-  sprockets-rails
   tzinfo-data
   unicorn (~> 6.1)
   web-console