refactor: moved server content to /server

server/views/modals/create-discard.pug

@@ -0,0 +1,10 @@
+.modal#modal-create-discard
+  .modal-background
+  .modal-container
+    .modal-content
+      header.is-orange Discard?
+      section
+        span Are you sure you want to leave this page and loose anything you wrote so far?
+      footer
+        a.button.is-grey.is-outlined.btn-create-discard Stay on page
+        a.button.is-orange(href='/') Discard