chore(deps-dev): bump standard from 12.0.1 to 16.0.3 (#78)

Bumps [standard](https://github.com/standard/standard) from 12.0.1 to 16.0.3.
- [Release notes](https://github.com/standard/standard/releases)
- [Changelog](https://github.com/standard/standard/blob/master/CHANGELOG.md)
- [Commits](standard/standard@v12.0.1...v16.0.3)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Trent Mick <[email protected]>

db/generate_orders.js

@@ -1,32 +1,32 @@
 'use strict'
 
-var pg = require('pg')
-var afterAll = require('after-all-results')
-var conf = require('../server/config')
+const pg = require('pg')
+const afterAll = require('after-all-results')
+const conf = require('../server/config')
 
-var amount = parseInt(process.argv[2], 10)
+const amount = parseInt(process.argv[2], 10)
 
 if (!amount) throw new Error('Amount not specified!')
 
-var client = new pg.Client(conf.pg)
+const client = new pg.Client(conf.pg)
 
 client.connect(function (err) {
   if (err) throw err
 
-  var next = afterAll(function (err, results) {
+  const next = afterAll(function (err, results) {
     if (err) throw err
 
-    var products = results[0].rows
-    var customers = results[1].rows
+    const products = results[0].rows
+    const customers = results[1].rows
 
-    var next = afterAll(function (err) {
+    const next = afterAll(function (err) {
       if (err) throw err
       client.end(function (err) {
         if (err) throw err
       })
     })
 
-    for (var n = 0; n < amount; n++) {
+    for (let n = 0; n < amount; n++) {
       createOrder(randomId(customers), randomOrderLines(products), next())
     }
   })
@@ -35,13 +35,13 @@ client.connect(function (err) {
   client.query('SELECT id FROM customers', next())
 
   function createOrder (customer, lines, cb) {
-    var sql = 'INSERT INTO orders (customer_id) VALUES ($1) RETURNING id'
+    const sql = 'INSERT INTO orders (customer_id) VALUES ($1) RETURNING id'
     client.query(sql, [customer], function (err, result) {
       if (err) return cb(err)
-      var next = afterAll(cb)
-      var id = result.rows[0].id
+      const next = afterAll(cb)
+      const id = result.rows[0].id
       lines.forEach(function (line) {
-        var sql = 'INSERT INTO order_lines (order_id, product_id, amount) VALUES ($1, $2, $3)'
+        const sql = 'INSERT INTO order_lines (order_id, product_id, amount) VALUES ($1, $2, $3)'
         client.query(sql, [id, line.id, line.amount], next())
       })
     })
@@ -62,9 +62,9 @@ function randomId (arr) {
 }
 
 function randomOrderLines (products) {
-  var amount = random(8)
-  var result = []
-  for (var n = 0; n < amount; n++) {
+  const amount = random(8)
+  const result = []
+  for (let n = 0; n < amount; n++) {
     result.push({
       id: randomId(products),
       amount: random(3)