Description

While the state and UI existed already, this PR completes it with:

• Cancel sharding action (requires confirmation)
• Polling for shardKey or shardingError
  • polling starts when sharding state has been detected right away or reached after a successful sharding request
  • polling ends when either shardKey or shardingError is retrieved, or when the user cancels the sharding request
    -polling is paused when the plugin title is not displayed (this means the user is not in the workspace), and renewed if they come back. note: this is tied to the plugin title and not content because the title includes the unsharded warning
• Simplified integration tests (index.spec.ts - testing redux + service in different scenarios).

Checklist

• New tests and/or benchmarks are included
• Documentation is changed or added
• I have signed the MongoDB Contributor License Agreement (https://www.mongodb.com/legal/contributor-agreement)

Motivation and Context

• Bugfix
• New feature
• Dependency update
• Misc

Open Questions

Dependents

Types of changes

• Backport Needed
• Patch (non-breaking change which fixes an issue)
• Minor (non-breaking change which adds functionality)
• Major (fix or feature that would cause existing functionality to change)