ACS-11154 Viewer stabilisation, lint fixes (#11660)

* refactor: clean up code in SuperagentHttpClient and upload.spec

- Removed unnecessary eslint-disable comment in SuperagentHttpClient for improved code clarity.
- Refactored promise handling in upload.spec to utilize an array for better management of multiple promises during file upload error handling.

* chore: update cspell and ESLint configurations

- Added "webscript" to the cspell dictionary for improved spell checking.
- Updated ESLint configuration to disable the "@typescript-eslint/no-explicit-any" rule, allowing more flexibility in type definitions.

* fix: enhance ImgViewerComponent to handle cleanup and prevent errors after destruction

- Added a `destroyed` flag to manage component lifecycle and prevent operations on a destroyed instance.
- Implemented `afterEach` hooks in tests to ensure proper fixture cleanup.
- Updated key event handlers and methods to check for the `destroyed` state before executing actions, improving stability and preventing errors.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix: add aria-hidden attribute to notification history button for accessibility

- Updated the notification history button to include the `aria-hidden` attribute, improving accessibility for screen readers and enhancing user experience.

* fix: improve key event handling in ImgViewerComponent

- Updated key event handlers to check for the presence of the cropper before executing actions, enhancing stability and preventing errors when the component is destroyed.
- Removed redundant checks from individual arrow key handlers, streamlining the code.

---------

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/js-api/test/upload.spec.ts

@@ -301,21 +301,20 @@ describe('Upload', () => {
 
             uploadMock.get401Response();
 
-            let promiseProgressOne = {};
-            let promiseProgressTwo = {};
+            const promises: Promise<string>[] = [];
 
             const uploadPromise: any = uploadApi.uploadFile(file);
             uploadPromise.catch(() => {});
 
             uploadPromise
                 .once('error', () => {
-                    promiseProgressOne = Promise.resolve('Resolving');
+                    promises.push(Promise.resolve('Resolving'));
                 })
                 .once('unauthorized', () => {
-                    promiseProgressTwo = Promise.resolve('Resolving');
+                    promises.push(Promise.resolve('Resolving'));
                 });
 
-            Promise.all([promiseProgressOne, promiseProgressTwo]).then(() => {
+            Promise.all(promises).then(() => {
                 done();
             });
         });