fix: update svelte to use let, not const for template

Author: sashamilenkovic

frameworks/svelte/JS/src/pages/BasicViewerPage.svelte

@@ -6,7 +6,7 @@ import {
 } from "../nutrient/basic-viewer/implementation";
 import { loadNutrientViewer } from "../nutrient/loadNutrientViewer";
 
-const container = null;
+let container = null;
 let nutrientViewer = null;
 
 onMount(async () => {

frameworks/svelte/JS/src/pages/CustomOverlaysPage.svelte

@@ -6,7 +6,7 @@ import {
 } from "../nutrient/custom-overlays/implementation";
 import { loadNutrientViewer } from "../nutrient/loadNutrientViewer";
 
-const container = null;
+let container = null;
 let nutrientViewer = null;
 
 onMount(async () => {

frameworks/svelte/JS/src/pages/MagazineModePage.svelte

@@ -6,7 +6,7 @@ import {
   unloadMagazineViewer,
 } from "../nutrient/magazine-mode/implementation";
 
-const container = null;
+let container = null;
 let nutrientViewer = null;
 
 onMount(async () => {