Geo Framework: Display verification progress in Admin UI and rake tasks

What does this MR do?

• Adds Package File verification progress bar to the Admin UI
• Adds Package File Verified: line to rake geo:status, rake gitlab:geo:check_replication_verification_status
• Makes rake gitlab:geo:check_replication_verification_status exit 0 if Package File Verified is not 100%

Resolves #13980 (closed)

Screenshots (strongly suggested)

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry => behind feature flag
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.