docs: update changelog for new shared components and improvements

Author: ashleyshaw

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Added
+
 #### Shared Components
 
 - Added new and updated shared components in `src/components/`:
@@ -23,6 +24,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - `Divider` (accessible divider)
 
 All components use mustache placeholders and follow WordPress accessibility and code structure standards.
+
 - `docs/FRONTMATTER_SCHEMA.md` now explains the agent frontmatter contract, points to `scripts/validation/audit-frontmatter.js`, and keeps schema updates in sync with `.github/schemas/frontmatter.schema.json`.
 - Canonical schema assets live under `.github/schemas/` (block 6.9 reference, mustache registries, plugin config, plus example configs) and are verified by `scripts/validation/__tests__/validate-schemas.test.js`.
 - Validation tools now centralise their naming conventions in `scripts/validation/README.md` and keep all `validate-*`, `audit-*`, `test-*`, and `define-*` scripts within `scripts/validation/`.