Add basic 404 page

client/nginx.conf

@@ -26,6 +26,11 @@ http {
       alias /app/assets/styling;
     }
 
+    error_page 404 /404.html;
+    location = /404.html {
+      root /app/error;
+    }
+
     error_page   500 502 503 504  /50x.html;
     location = /50x.html {
       root   /usr/share/nginx/html;

client/public/error/404.html

@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html lang="en" dir="ltr">
+  <head>
+    <meta charset="utf-8">
+    <title>404</title>
+  </head>
+  <body>
+    This page could not be found, sorry for the inconvenience
+  </body>
+</html>