feat: locales availability + IE display mode

server/db/migrations/2.0.0-beta.217.js

@@ -0,0 +1,13 @@
+exports.up = knex => {
+  return knex.schema
+    .table('locales', table => {
+      table.integer('availability').notNullable().defaultTo(0)
+    })
+}
+
+exports.down = knex => {
+  return knex.schema
+    .table('locales', table => {
+      table.dropColumn('availability')
+    })
+}