enhancement: add checkmark selected model

[urmauur]

Describe Your Changes

This pull request includes changes to the ModelDropdown component in the web/containers/ModelDropdown/index.tsx file to enhance its functionality and user interface. The most important changes are:

Enhancements to ModelDropdown component:

• Added CheckIcon import to the list of icons used in the component.
• Included a conditional rendering of the CheckIcon next to the selected model to visually indicate the currently selected model.

Fixes Issues

• Closes enhancement: improve the way to display the selecting model #4635
• Closes #

Self Checklist

• Added relevant comments, esp in complex areas
• Updated docs (for bug fixes / features)
• Created issues for follow-up changes or refactoring needed

[github-actions]

Barecheck - Code coverage report

Total: 67.57%

Your code coverage diff: 0.00% ▴

Uncovered files and lines

File	Lines
web/containers/ModelDropdown/index.tsx	129-130, 140, 149, 153, 155, 157-158, 160-161, 163-166, 168, 190-191, 201, 205, 220-221, 228-232, 234, 236, 255, 258, 265, 272, 275-276, 298, 322, 345, 366, 375, 381, 392, 395, 397, 401, 403-408, 411, 414, 471-472, 474, 500, 507, 511, 536, 541-542, 544, 548-550, 552-553, 567, 571-573, 610, 618, 620