add 'add another' checkbox

frontend/src/lib/modals/ItemCreateModal.svelte

@@ -14,6 +14,7 @@
   import AcquiredTimeInput from "$lib/components/controls/AcquiredTimeInput.svelte";
   import RequirementSelect from "$lib/components/controls/RequirementSelect.svelte";
   import StatInput from "$lib/components/controls/StatInput.svelte";
+  import Checkbox from "$lib/components/layout/Checkbox.svelte";
   import type Item from "$lib/models/item";
   import type { ItemInput } from "$lib/models/item";
   import type { Requirement } from "$lib/models/project";
@@ -28,7 +29,6 @@
   const {reloadItemList} = getItemListContext();
   const {reloadSprintList} = getSprintListContext();
   const {reloadItemLists} = getItemMultiListContext();
-  const {page} = getStores();
 
   let item: ItemInput
   let itemId: number
@@ -42,6 +42,8 @@
   let error: string
   let loading: boolean
   let show: boolean
+  let addAnother: boolean
+  let nameElem: HTMLElement
 
   $: switch ($currentModal.name) {
     case "item.create":
@@ -161,7 +163,13 @@
       await reloadSprintList(); 
       reloadItemLists();
 
-      closeModal();
+      if (addAnother) {
+        item.name = "";
+        item.description = "";
+        nameElem.focus();
+      } else {
+        closeModal();
+      }
     } catch(err) {
       if (err.statusCode != null) {
         error = err.statusMessage;
@@ -179,11 +187,12 @@
   <Modal wide closable show={show} verb={op} noun="Item" disabled={loading} error={error}>
     <ModalBody>
       <label for="name">Name</label>
-      <input name="name" type="text" bind:value={item.name} />
+      <input bind:this={nameElem} name="name" type="text" bind:value={item.name} />
       <label for="acquiredTime">Acquired</label>
       <AcquiredTimeInput openDate={openedDate} bind:value={item.acquiredTime} />
       <label for="description">Description</label>
       <textarea name="description" bind:value={item.description} />
+      <Checkbox bind:checked={addAnother} label="Add another." />
     </ModalBody>
     <ModalBody>
       {#if requirementName != null}