Updated gemspec to specific Rails gems (#568)

* Updated gemspec to specific Rails gems

Most apps don't require the full suite of Rails gems, and can avoid
installing them to save CI and deploy time. This gem, however, had a
dependency on the Rails meta-gem which ended up installing them all
anyways.

Instead, we can limit it to only the Rails gems that we directly depend upon.

* We use Action View, too

* Update Gemfile.lock

Co-authored-by: leastbad <38150464+leastbad@users.noreply.github.com>

Gemfile.lock

@@ -2,10 +2,13 @@ PATH
   remote: .
   specs:
     stimulus_reflex (3.5.0.pre8)
+      actioncable (>= 5.2)
+      actionpack (>= 5.2)
+      actionview (>= 5.2)
+      activesupport (>= 5.2)
       cable_ready (= 5.0.0.pre8)
       nokogiri
       rack
-      rails (>= 5.2)
       redis
 
 GEM
@@ -256,9 +259,10 @@ DEPENDENCIES
   mocha
   pry
   pry-nav
+  rails (>= 5.2)
   rake
   standardrb (~> 1.0)
   stimulus_reflex!
 
 BUNDLED WITH
-   2.2.31
+   2.2.33

stimulus_reflex.gemspec

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require File.expand_path("../lib/stimulus_reflex/version", __FILE__)
+require File.expand_path("lib/stimulus_reflex/version", __dir__)
 
 Gem::Specification.new do |gem|
   gem.name = "stimulus_reflex"
@@ -32,17 +32,23 @@ Gem::Specification.new do |gem|
   gem.files = Dir["app/**/*", "lib/**/*", "bin/*", "[A-Z]*"]
   gem.test_files = Dir["test/**/*.rb"]
 
-  gem.add_dependency "rack"
+  rails_version = ">= 5.2"
+  gem.add_dependency "actioncable", rails_version
+  gem.add_dependency "actionpack", rails_version
+  gem.add_dependency "actionview", rails_version
+  gem.add_dependency "activesupport", rails_version
+
+  gem.add_dependency "cable_ready", "5.0.0.pre8"
   gem.add_dependency "nokogiri"
-  gem.add_dependency "rails", ">= 5.2"
+  gem.add_dependency "rack"
   gem.add_dependency "redis"
-  gem.add_dependency "cable_ready", "5.0.0.pre8"
 
   gem.add_development_dependency "bundler", "~> 2.0"
   gem.add_development_dependency "github_changelog_generator"
   gem.add_development_dependency "mocha"
   gem.add_development_dependency "pry"
   gem.add_development_dependency "pry-nav"
+  gem.add_development_dependency "rails", rails_version
   gem.add_development_dependency "rake"
   gem.add_development_dependency "standardrb", "~> 1.0"
 end