docs(changelog): fix breaking change sections

Author: benelan

packages/calcite-components-react/CHANGELOG.md

@@ -7,7 +7,7 @@ See [Conventional Commits](https://conventionalcommits.org) for commit guideline
 
 ### ⚠ BREAKING CHANGES
 
--
+- For a consistent development experience, components now convert `null` to `undefined`, so developers will need to update code with strict null checks
 
 ### Code Refactoring
 

packages/calcite-components/CHANGELOG.md

@@ -25,7 +25,7 @@ See [Conventional Commits](https://conventionalcommits.org) for commit guideline
 - **input-time-zone:** Developers using `messageOverrides` will need to make sure they do not reference removed entries.
 - **block:** The component's `label` property is a required property and `heading` is an optional property.
 - **list:** The component's `label` property is required to provide context between lists when dragging.
--
+- For a consistent development experience, components now convert `null` to `undefined`, so developers will need to update code with strict null checks
 - Components remain directly consumable, with no wrapper needed.
 - floating-ui elements no longer take up space when closed ([#10241](https://github.com/Esri/calcite-design-system/issues/10241))
 - **list:** Modifies the component's keyboard sorting experience by using a dropdown menu to move list items. The ListItem `dragSelected` property and `calciteListItemDragHandleChange` event have been removed due to no longer being relevant.

packages/calcite-ui-icons/CHANGELOG.md

@@ -5,10 +5,6 @@ See [Conventional Commits](https://conventionalcommits.org) for commit guideline
 
 ## [4.0.0](https://github.com/Esri/calcite-design-system/compare/@esri/calcite-ui-icons@3.32.0...@esri/calcite-ui-icons@4.0.0) (2025-02-08)
 
-### ⚠ BREAKING CHANGES
-
--
-
 ### Features
 
 - Add ArcGIS Knowledge Studio 11.5 Icons ([#11018](https://github.com/Esri/calcite-design-system/issues/11018)) ([deaeacd](https://github.com/Esri/calcite-design-system/commit/deaeacd919f67bb91fafd1313aa261fea44453d2))

packages/eslint-plugin-calcite-components/CHANGELOG.md

@@ -7,8 +7,7 @@ See [Conventional Commits](https://conventionalcommits.org) for commit guideline
 
 ### ⚠ BREAKING CHANGES
 
--
-- The following deprecated rules from `@esri/eslint-plugin-calcite-components` have been removed due to changes introduced in #10310:
+- The following deprecated rules from `@esri/eslint-plugin-calcite-components` have been removed due to changes introduced in #10310: `ban-props-on-host`, `enforce-ref-last-prop`, and `require-event-emitter-type`. Developers should either remain on the current version or remove these rules from their ESLint configuration to avoid potential issues.
 
 ### Deprecations