style: redesign the install script interface

[sofia-riese]

Preserve the original script functionality unchanged, but redesign the user interface and unify the operational logic.

Below is a demonstration of the modified interface:

redesign.webm

Based on my own testing on Linux, I haven't encountered any issues so far. My device options are limited, so I hope to receive actual testing and feedback from various devices.

Perhaps could find some helpful guinea pigs :)

Additionally, you can get started with the following commands (which call my forked repository) on Linux:

export url='https://raw.githubusercontent.com/sofia-riese/ShellCrash/refs/heads/testing' \
  && bash -c "$(curl -kfsSl $url/install.sh)" \
  && . /etc/profile &> /dev/null