docs: improve clarity and consistency in changelog entries

Author: dido18

docs/CHANGELOG.md

@@ -7,24 +7,27 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/)
 ## [Unreleased]
 
 ### Added
+
 - Improve the help message of `arduino-app-cli` (#61)
-- Add `arduino-avahi-serial.service` systemd service which runs once adding the `serial_number` to the avahi daemon (#48)
-- Add the `daemon_version` in the  `arduino-app-cli version` command (#49)
-- Add  `arduino-app-cli app clean-cache <app-id>` command (#59)
+- Add `arduino-avahi-serial.service` systemd service that runs once to add the `serial_number` to the avahi daemon (#48)
+- Add the `daemon_version` field to the `arduino-app-cli version` command (#49)
+- Add `arduino-app-cli app clean-cache <app-id>` command (#59)
 - pkg/board/board: expose the `serial_number` in network mode (#63)
-- pkg/board/remote/adb: return `failed to create command` if the `GetCmd` fails (#79)
+- pkg/board/remote/adb: return `failed to create command` error when `GetCmd` fails (#79)
 - Update `arduino-cli` dependencies (#86)
-- Add `code` field with `NO_INTERNET_CONNECTION`,  `OPERATION_IN_PROGRESS` and `UNKNOWN_ERROR` values in the update handlers and CLI (#62)
-- Refactor README.md + contribution guidelines (#58)
-- Return the `error running needrestart command` error detail during the update (#95)
+- Add `code` field with `NO_INTERNET_CONNECTION`, `OPERATION_IN_PROGRESS` and `UNKNOWN_ERROR` values in the update handlers and CLI (#62)
+- Refactor README.md and contribution guidelines (#58)
+- Return detailed `error running needrestart command` error information during updates (#95)
 
 ### Removed
+
 - Remove `arduino-app-cli app ps` command (#65)
 
 ### Fixed
-- pkg/board/remote/adb: fix zombie process in adb resulting in  `fork failed: resource temporarily unavailable` error (#81)
+
+- pkg/board/remote/adb: fix zombie process in adb that resulted in `fork failed: resource temporarily unavailable` error (#81)
 - Check if the app is running/starting before stopping it in `arduino-app-cli app stop` and `DELETE /v1/apps/{appID}` (#84)
-- Allow missing required variable when a brick is added (#74)
+- Allow missing required variables when adding a brick (#74)
 
 ## [0.6.7] - 2025-11-10
 
@@ -36,8 +39,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/)
 
 ### Fixed
 
-- Install a library missing from local library-index (#50)
-- Remove the `variable default value cannot be empty` error when a brick is added to an app (#44)
+- Install libraries missing from local library-index (#50)
+- Remove the `variable default value cannot be empty` error when adding a brick to an app (#44)
 
 ## [0.6.6] - 2025-11-03
 
@@ -49,7 +52,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/)
 
 ### Fixed
 
-- Check websocket origin check (fixes serial monitor on Windows) (#39)
+- Fix websocket origin validation (fixes serial monitor on Windows) (#39)
 - Use a valid origin in `GET /v1/monitor/ws` (#41)
 - Remove `Requires` from the systemd `arduino-app-cli.service` (#34)
 
@@ -62,4 +65,4 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/)
 
 ## [0.6.3] - 2025-10-27 [YANKED]
 
-The index of the zephyr core is wrong, so the update to the next version fails.
+The zephyr core index contains errors, causing updates to the next version to fail.