Add missing CHANGELOG entry

Author: thibaudcolas

CHANGELOG.md

@@ -39,6 +39,7 @@
 - Latest draftjs-conductor
 - Latest draftjs-filters
 - Dismiss keyboard shortcuts
+- Move Sass import from `draftail/lib/index.scss` to `draftail/src/index.scss`
 
 ### Fixed
 
@@ -55,6 +56,10 @@
 
 For projects using TypeScript, the addition of type definitions is likely to cause new linting issues being reported in case Draftail’s new types are incompatible with the implementation.
 
+#### Sass import
+
+- Move Sass import from `draftail/lib/index.scss` to `draftail/src/index.scss`
+
 #### Browser support
 
 The editor now supports modern browsers only, in particular IE11 support has been removed. The new browser support follows evergreen browsers only. The oldest-supported browser is currently Safari 14.1.