chore: prepare CHANGELOG.md and icons for release (#138)

CHANGELOG.md

@@ -9,6 +9,15 @@ It is expected that you keep this format strictly, since we depend on it in our
 
 ## [Unreleased]
 
+### Added
+
+- (#133) Added the `SBBStepper` [digital.sbb.ch#figma](https://www.figma.com/design/tZnqGkmyGDColC9D176MEu/DSM-Beta-Components?node-id=12302-13869&t=8jZ7c63YUMMZAe8y-0)
+
+### Changed
+
+- (#130) using icons from CDN version `0.1.81`
+- (#137) use [flutter_lints](https://pub.dev/packages/flutter_lints) instead of outdated dart linter
+
 ## [1.3.0] - 2024-05-30
 
 ### Added
@@ -22,7 +31,6 @@ It is expected that you keep this format strictly, since we depend on it in our
 
 - (#118) Changed the test flow to include CHANGELOG.md validation.
 - (#111) `SBBMessage`: Make `SBBMessage` only as big as needed to prevent content being pushed on top.
-- using icons from CDN version `0.1.81`
 
 ### Fixed
 

lib/src/theme/sbb_icons/sbb_icons.dart

@@ -10,6 +10,8 @@ const smallFontFamily = 'packages/design_system_flutter/SBBIconsSmall';
 const mediumFontFamily = 'packages/design_system_flutter/SBBIconsMedium';
 const largeFontFamily = 'packages/design_system_flutter/SBBIconsLarge';
 
+// The names are given by digital.sbb.ch
+// ignore_for_file: constant_identifier_names
 sealed class SBBIcons {
   static const aerosol_can_small = IconData(0xf101, fontFamily: smallFontFamily);
   static const airplane_small = IconData(0xf102, fontFamily: smallFontFamily);