Install nodemailer, update NPM packages, update mail template

Signed-off-by: Fred Boniface <fred@fjla.uk>

package.json

@@ -5,6 +5,7 @@
     "express": "^4.18.2",
     "ldbs-json": "^1.2.1",
     "mongodb": "^4.13.0",
+    "nodemailer": "^6.9.1",
     "string-sanitizer-fix": "^2.0.1"
   },
   "name": "owlboard",

src/mail-templates/register.html

@@ -10,6 +10,13 @@
             </td>
             <td>
                 <h1>Register for OwlBoard</h1>
+                <p>Use the link below to register for OwlBoard (Staff Version)</p>
+                <a href="">Register</a>
+                <br>
+                <p>The registration will apply only to the device you click this link on,
+                   you can use the same email to register on other devices but you will 
+                   need a separate registration link.
+                </p>
             </td>
         </tr>
     </table>

src/services/mail.services.js

@@ -1,5 +1,5 @@
 const log = require('../utils/log.utils')
-const mail = require('some-mail-module')
+const mail = require('node-mailer')
 
 async function sendTest() {
     // Send test mail message