Add Language model and LanguageController

db/migrate/20231025010204_create_languages.rb

@@ -0,0 +1,9 @@
+class CreateLanguages < ActiveRecord::Migration[7.1]
+  def change
+    create_table :languages do |t|
+      t.string :name
+
+      t.timestamps
+    end
+  end
+end