[StudiesTable] Add Checkbox for Study Selection

[remixxx31]

Add checkboxes to the StudiesTable component for each study. Selecting a study should select all associated series.

Checklist:

• [ ] Add checkboxes for each study in the StudiesTable component.
• [ ] Ensure selecting a study also selects all associated series.
• [ ] Provide a way to update the selection state in ContentRoot.