Dev: Update MUI to v8

**Describe the task**
Migrate mui from v6 to v8 and related @mui-icons

**Acceptance Criteria**
- [ ] check compatibility with @mui-x-pro package.
- [ ] All applications rendering with mui v7

**Additional context**
- https://mui.com/blog/mui-x-v8/
- https://mui.com/blog/mui-x-v8/#migration-guide
- https://mui.com/material-ui/migration/upgrade-to-v7/
- https://github.com/bcgov/wps/issues/3507
- Encompasses these updates:
- https://github.com/bcgov/wps/pull/4381
- https://github.com/bcgov/wps/pull/4380
- https://github.com/bcgov/wps/pull/4379

Start with the linked MUI migration guides and the three referenced pull requests, then check compatibility with the @mui-x-pro package across the applications. Done means the MUI and related icon packages are migrated and all applications render successfully under the requested version criteria.

Written by the indexing model from the issue text.