Remove IE11 Support from Olivero

Problem/Motivation

Support for IE11 was removed in Drupal 10 branch.

$ grep -ri IE11 --exclude-dir="node_modules" --exclude-dir="assets" core
core/themes/claro/js/tableselect.js:        // is preferable, but not supported by IE11.
core/themes/claro/js/tableselect.js:          // Determine add/remove with ternary since IE11 does not support the

Steps to reproduce

Proposed resolution

Make MR
Review
Test
Commit

Remaining tasks

Remove support for IE11from core/themes/claro/js/tableselect.js,

User interface changes

Introduced terminology

API changes

Data model changes

Release notes snippet