redis: add item to key

packages/web/src/dbkeyvalue/DbKeyItemDetail.svelte

@@ -3,13 +3,25 @@
 
   export let keyInfo;
   export let item;
+  export let onChangeItem;
 </script>
 
 <div class="props">
   {#each keyInfo.tableColumns as column}
     <div class="colname">{column.name}</div>
     <div class="colvalue">
-      <AceEditor readOnly value={item && item[column.name]} />
+      <AceEditor
+        readOnly={!onChangeItem}
+        value={item && item[column.name]}
+        on:input={e => {
+          if (onChangeItem) {
+            onChangeItem({
+              ...item,
+              [column.name]: e.detail,
+            });
+          }
+        }}
+      />
     </div>
   {/each}
 </div>