Fix stale references to twenty-backend

twenty-client/Rakefile.rb

@@ -3,7 +3,7 @@ load 'tasks/nanoc.rake'
 namespace :schema do
   desc "Generate src/js/types/schema.ts"
   task :regen do
-    path = File.join "..", "twenty-backend"
+    path = File.join "..", "twenty-server"
     Bundler.with_unbundled_env {
       Dir.chdir(path) { sh "bundle exec rake schema:regen" }
     }

twenty-server/Rakefile.rb

@@ -2,10 +2,10 @@ require "bundler/setup"
 require "fileutils"
 
 namespace :schema do
-  desc "Generate share/twenty-backend/schema.graphql"
+  desc "Generate share/twenty-server/schema.graphql"
   task :regen do
-    require "twenty-backend"
-    schema = File.join(__dir__, "share", "twenty-backend", "schema.graphql")
+    require "twenty-server"
+    schema = File.join(__dir__, "share", "twenty-server", "schema.graphql")
     FileUtils.mkdir_p File.dirname(schema)
     File.binwrite schema, Twenty::GraphQL::Schema.to_definition
   end