fix: added id for modal header

[niti-owner]

Description

Added id for modal header

Related Issue

CX-10496: Transfer Request dialog is announced with incorrect label

Motivation and Context

By adding id field, the aria-labelledby will be used to announce the dialogue header

How Has This Been Tested?

1. Tested in Jaws, announcing the header on open
2. Mac Voice Over - known issue of dialogue not announcing the header

Screenshots:

Before: Refer the jira for video

After: https://app.vidcast.io/share/e7dd4b3d-4c1b-4a0c-9751-29446cc791e3

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Documentation update
• [ ] Code style update (formatting, local variables)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] CI related changes
• [ ] Other... Please describe:

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 94.23%. Comparing base (7862c52) to head (dc0bf71).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1569 +/- ## ========================================== + Coverage 94.13% 94.23% +0.09% ========================================== Files 134 134 Lines 19104 19104 Branches 2930 2932 +2 ========================================== + Hits 17984 18003 +19 + Misses 1120 1101 -19 ```

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