Add image and fix module calls

mccs-it/thermal/app.js

@@ -1,6 +1,5 @@
 const express = require('express');
 const Thermal = require('./modules/Thermal.js');
-const printer = require('printer');
 
 const app = express();
 const port = 3000;

mccs-it/thermal/modules/Thermal.js

@@ -29,7 +29,7 @@ module.exports = {
         doc.pipe(printer.stdin);
 
         // Add image and text to the PDF
-        doc.image('../public/itslogo.png', {
+        doc.image('../public/itslogo.jpg', {
         fit: [576, 261],
         align: 'center',
         valign: 'top'