feat: Customisable Email Templates (#1095)

db/migrate/20200725131651_create_email_templates.rb

@@ -0,0 +1,13 @@
+class CreateEmailTemplates < ActiveRecord::Migration[6.0]
+  def change
+    create_table :email_templates do |t|
+      t.string :name, null: false
+      t.text :body, null: false
+      t.integer :account_id, null: true
+      t.integer :template_type, default: 1
+      t.integer :locale, default: 0, null: false
+      t.timestamps
+    end
+    add_index :email_templates, [:name, :account_id], unique: true
+  end
+end