DEV: Update jsconfig (#34285)

to include recently bundled plugins and themes

script/build_jsconfig.rb

@@ -1,3 +1,4 @@
+#!/usr/bin/env ruby
 # frozen_string_literal: true
 
 require "pathname"
@@ -51,22 +52,25 @@ def write_config(package_dir, extras: {})
   }
 
   output = <<~JSON
-    // This file was generated by scripts/build_jsconfig.rb
+    // This file was generated by script/build_jsconfig.rb
     #{JSON.pretty_generate(config)}
   JSON
 
   File.write("#{package_dir}/jsconfig.json", output)
 end
 
-core_plugins = `git ls-files plugins/*/plugin.rb`.lines.map { |path| path.split("/")[1] }
 plugin_configs =
-  core_plugins
-    .map do |name|
-      [
-        "discourse/plugins/#{name}/*",
-        ["plugins/#{name}/assets/javascripts", "plugins/#{name}/test/javascripts"],
-      ]
+  `git ls-files plugins/*/plugin.rb`.lines
+    .map { File.dirname(_1) }
+    .map do |path|
+      ["discourse/#{path}/*", ["#{path}/assets/javascripts", "#{path}/test/javascripts"]]
     end
     .to_h
 
-write_config ".", extras: { **plugin_configs }
+theme_configs =
+  `git ls-files themes/*/about.json`.lines
+    .map { File.dirname(_1) }
+    .map { |path| ["discourse/#{path}/*", ["#{path}/javascripts", "#{path}/test"]] }
+    .to_h
+
+write_config ".", extras: plugin_configs.merge(theme_configs)