* Publish/Subscribe events added to WorkflowSettings and WorkflowRegistry
* Workflow Registry re-indexed and cache refreshed on workflow disable/enable
* IsDisabled property added to WorkflowBlueprintSummary to display disabled status in the UI
* MySql, PostgreSql and SqlServer persistence added to Workflow Settings
* Validation for disabled workflow in Workflow Resumer
* WorkflowSettings configuration added to the appsettings.json
* Workflow Settings added to Elsa.Server.Host startup collection
* IWorkflowSettingsProvider implemented
* Update README.md
* Elsa-Workflow-Settings and Elsa-Webhooks separate modules added and decoupled from Elsa Web
* Delete unused Client projects
* LoadWorkflowSettingsDisabledHandler changes
* FeatureProvider removed, Webhooks plugin merged to Webhooks Feature Plugin
* Update Webhooks and Settings plugin
Co-authored-by: Sipke Schoorstra <sipkeschoorstra@outlook.com>