refactoring: custom views service.

fix: constraints of delete item from storage.
fix: constraints of delete item category from storage.
fix: localize database seeds files.
fix: view meta data in accounts list response.

server/src/database/migrations/20190822214302_create_account_types_table.js

@@ -2,7 +2,6 @@
 exports.up = (knex) => {
   return knex.schema.createTable('account_types', (table) => {
     table.increments();
-    table.string('name');
     table.string('key').index();
     table.string('normal').index();
     table.string('root_type').index();