refactor: use globalThis instead of window for location.reload

Replace window.location.reload() with globalThis.location.reload() for consistency with modern JavaScript best practices. All window references should use globalThis for better cross-environment compatibility.

SonarQube: Addresses javascript:S7764

Author: vlazic

internal/assets/web/static/app.js

@@ -475,7 +475,7 @@ const FormHandler = {
 
             // Trigger config refresh and reload
             document.body.dispatchEvent(new CustomEvent('configChanged'));
-            window.location.reload();
+            globalThis.location.reload();
 
         } catch (error) {
             UIManager.showErrorMessage(error.message);

web/static/app.js

@@ -475,7 +475,7 @@ const FormHandler = {
 
             // Trigger config refresh and reload
             document.body.dispatchEvent(new CustomEvent('configChanged'));
-            window.location.reload();
+            globalThis.location.reload();
 
         } catch (error) {
             UIManager.showErrorMessage(error.message);