Update FEAScript library import in WebGPU tutorial

Author: nikoscham

tutorials/heat-conduction-2d-fin-webgpu.html

@@ -165,7 +165,7 @@ <h2 id="results">Results</h2>
 
     <script type="module">
         //Import FEAScript library from GitHub
-        import { FEAScriptWorker, plotSolution } from "https://core.feascript.com/src/index.js";
+        import { FEAScriptModel, plotSolution } from "https://core.feascript.com/src/index.js";
         //Import FEAScript library from a local directory
         // import { FEAScriptModel, plotSolution } from "../../FEAScript-core/src/index.js";