chore(script): fix assistant.sh script

[stavares843]

What this PR does 📖

in dev, would only have option 1, 2 and 3 and would not install gum if wasn't already installed

and the 2) would say the following

in this branch, if you don't have gum installed, will install automatically using brew

Gravacao.do.ecra.2024-01-30.as.00.15.23.mov

then you have the following options

1. it shows 3 options and then selecting each one it tells you the extensions command
   in this case it doesnt really execute just writes the command for the user to use 😂
2. executes cargo run
3. list of each option in more detail
4. to run clippy
5. to run fmt
6. to auto fix clippy
7. to auto fix fmt

fix_script001.mov

if you have changes locally will warn you about those when running the auto fix linter commands

[github-actions]

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