feat(handlers): Add generic error handler

views/mixins/_lesson.pug

@@ -26,3 +26,4 @@ mixin lesson(lesson, course, nextLesson)
     .lesson_footer
       if nextLesson
         a.lesson__cta.cta(href=`/courses/${course.fields.slug}/lessons/${nextLesson.fields.slug}${queryString}`) View next lesson
+

views/mixins/_lessonModuleImage.pug

@@ -1,6 +1,11 @@
 mixin lessonModuleImage(module)
   .lesson-module.lesson-module-image
+<<<<<<< Updated upstream
     if module.fields.file && module.fields.file.url
       img.lesson-module-image__image(src=module.fields.file.url alt=module.fields.title)
     else
       h3 ⚠️ Image missing
+=======
+    img.lesson-module-image__image(src=module.fields.image.fields.file.url alt=module.fields.image.fields.title)
+    div.lesson-module-image__title #{module.fields.title}
+>>>>>>> Stashed changes