Release v1.8.1 - Bug fix for pinned items.

[echoboomer]

Describe your changes

• Fixes bug where pinned items wouldn't work because of hardcoded prefix.
• Linting and formatting.
• New internal Kubernetes library (not yet used) and groundwork for cluster-native Incident types.

Issue number and link

#408

Checklist before requesting a review

• I have properly bumped all version refs by running ./scripts/version-bump.sh old new from project root - for example ./scripts/version-bump.sh 1.4.8 1.4.9
• I have added or changed tests as part of this pull request
• I will open a pull request for the Helm chart to bump the app and chart versions