feat: Improve security of access tokens (#279)

Closes #275

server/db/migrations/20220803221221_add_password_changed_at_to_user_account_table.js

@@ -0,0 +1,11 @@
+module.exports.up = async (knex) =>
+  knex.schema.table('user_account', (table) => {
+    /* Columns */
+
+    table.timestamp('password_changed_at', true);
+  });
+
+module.exports.down = async (knex) =>
+  knex.schema.table('user_account', (table) => {
+    table.dropColumn('password_changed_at');
+  });