fix(app-shell): fix nav-list menu

Description

What's included?

There was a conflict in the override firstUpdated() method, which caused a block in closing the nav-list menu. To avoid this blockage, the _startResizing method was removed. This resolved both issues: on one hand, the correct closing of the nav-list menu, and on the other hand, resizing to the default size of 320px for the help panel when double-clicking on the resize line.

Fix the problem with the Hamburger Menu on Nav list Menu.
Tested using Covalent 8.12.1

NOTE : It was found that the line setTimeout(updateActionRibbon, 150) in the file app-shell.stories.js ; is causing the error "Uncaught TypeError: Cannot read properties of undefined (reading '0')". This line introduces a delay before executing updateActionRibbon to ensure that all elements and components are fully initialized.

Removing setTimeout(updateActionRibbon, 150); may avoid the current error, but we need to find a way to ensure that updateActionRibbon only executes after dataTable is fully initialized.

Test Steps

[ ] npm run start
[ ] then this
[ ] finally this

General Tests for Every PR

[ ] npm run start still works.
[ ] npm run lint passes.
[ ] npm run stylelint passes.
[ ] npm test passes and code coverage is not lower.
[ ] npm run build still works.

Teradata / covalent