PM-5104: Add TG reprocess confirmation

[jmgasper]

What was broken
The Topgear submission reprocess icon in the review app sent the reprocess request immediately when clicked.

Root cause
The click handler directly called the Topgear reprocess service without a confirmation step.

What was changed
Added a confirmation dialog that asks whether to reprocess the selected Topgear submission, with Yes continuing the reprocess request and No closing the dialog.

Any added/updated tests
Added a focused TabContentSubmissions component test covering that the dialog opens, No does not reprocess, and Yes calls the reprocess service.

Validation run:

• yarn lint passed.
• yarn test:no-watch src/apps/review/src/lib/components/ChallengeDetailsContent/TabContentSubmissions.spec.tsx --runInBand passed.
• yarn run build passed with existing warnings.
• yarn test:no-watch --runInBand was run and still fails in unrelated work/wallet-admin specs: ChallengeEditorForm.spec.tsx cannot resolve ~/libs/core, wallet.spec.ts cannot resolve ~/apps/work/src/lib/services/challenges.service, and PaymentView.spec.tsx expects a task challenge URL but receives the project URL.