Do not use the the Caser for language-specific casing in the cli output

[dido18]

Motivation

The arduino-app-cli uses the "golang.org/x/text/cases" to print the error to the console with capitalize words.

This causes an issue when a word MUST not change.

For example, in the following case, the ARDUINO_DEVICE_ID is a configuration variable that must not be changed in the error exposed to the user.

Example:
Input: variable \"ARDUINO_DEVICE_ID\" is required by brick \"arduino:arduino_cloud\"
Output: [ERROR] Variable "Arduino_device_id" Is Required By Brick "Arduino:arduino_cloud"