Use new `stringToArrayBuffer` function

test/app/attachments_test.js

@@ -1,10 +1,10 @@
 const fse = require('fs-extra');
 const path = require('path');
-const stringToArrayBuffer = require('string-to-arraybuffer');
 const tmp = require('tmp');
 const { assert } = require('chai');
 
 const Attachments = require('../../app/attachments');
+const { stringToArrayBuffer } = require('../../js/modules/string_to_array_buffer');
 
 
 const PREFIX_LENGTH = 2;

test/modules/types/attachment_test.js

@@ -1,9 +1,9 @@
 require('mocha-testcheck').install();
 
-const stringToArrayBuffer = require('string-to-arraybuffer');
 const { assert } = require('chai');
 
 const Attachment = require('../../../js/modules/types/attachment');
+const { stringToArrayBuffer } = require('../../../js/modules/string_to_array_buffer');
 
 describe('Attachment', () => {
   describe('replaceUnicodeOrderOverrides', () => {

test/modules/types/message_test.js

@@ -1,7 +1,7 @@
-const stringToArrayBuffer = require('string-to-arraybuffer');
 const { assert } = require('chai');
 
 const Message = require('../../../js/modules/types/message');
+const { stringToArrayBuffer } = require('../../../js/modules/string_to_array_buffer');
 
 
 describe('Message', () => {