add modal form fields and buttons

views/templates/home.php

@@ -9,6 +9,17 @@
     </ul>
     <div id="create-plan-modal" hidden>
         <h2>Create plan</h2>
+        <label>Name
+            <input class="plan-name" type="text" />
+        </label>
+        <label>Start date
+            <input class="plan-date-start" type="date" />
+        </label>
+        <label>End date
+            <input class="plan-date-end" type="date" />
+        </label>
+        <button class="save-plan">Save</button>
+        <button class="cancel-plan">Cancel</button>
     </div>
     <script src="/js/home.js"></script>
 </body>