Merge pull request #45 from invopop/issigned_reactivity

fix isSigned reactivity on load

src/lib/GOBLBuilder.svelte

@@ -1,11 +1,18 @@
 <script lang="ts">
  import { createEventDispatcher } from "svelte";
- import { envelope, goblError, keypair, newEnvelope } from "$lib/editor/stores.js";
+ import {
+ envelope,
+ goblError,
+ keypair,
+ newEnvelope,
+ editorProblems,
+ jsonSchema,
+ validEditor,
+ } from "$lib/editor/stores.js";
  import MenuBar from "./menubar/MenuBar.svelte";
  import Editor from "./editor/Editor.svelte";
  import { isEnvelope } from "@invopop/gobl-worker";
  import { problemSeverityMap, type EditorProblem } from "./editor/EditorProblem.js";
- import { editorProblems, jsonSchema, validEditor, envelopeIsSigned } from "./editor/stores.js";
 
  import * as actions from "./editor/actions";
 
@@ -44,10 +51,7 @@
  });
  }
 
- $: {
- isValid = $validEditor;
- isSigned = $envelopeIsSigned;
- }
+ $: isValid = $validEditor;
 
  // When `data` is updated, update the internal envelope store.
  // If required instantiate a new envelope object to use.
@@ -71,6 +75,7 @@
 
  // Dispatch all `change` events when the envelope is modified.
  envelope.subscribe((envelope) => {
+ isSigned = Boolean(envelope?.sigs);
  dispatch("change", { envelope: JSON.stringify(envelope) });
  });