fix signature canvas minimize

app/javascript/draw.js

@@ -11,6 +11,7 @@ window.customElements.define('draw-signature', class extends HTMLElement {
     this.resizeObserver = new ResizeObserver(() => {
       requestAnimationFrame(() => {
         if (!this.canvas) return
+        if (!this.canvas.parentNode?.clientWidth) return
 
         const { width, height } = this.canvas
 

app/javascript/elements/signature_form.js

@@ -14,6 +14,7 @@ export default targetable(class extends HTMLElement {
     this.resizeObserver = new ResizeObserver(() => {
       requestAnimationFrame(() => {
         if (!this.canvas) return
+        if (!this.canvas.parentNode?.clientWidth) return
 
         const { width, height } = this.canvas
 

app/javascript/submission_form/signature_step.vue

@@ -544,6 +544,7 @@ export default {
       this.resizeObserver = new ResizeObserver(() => {
         requestAnimationFrame(() => {
           if (!this.$refs.canvas) return
+          if (!this.$refs.canvas.parentNode?.clientWidth) return
 
           const { width, height } = this.$refs.canvas