feat: powershell toolbox improvements

[lambdaclan]

Improve PowerShell toolbox experience

Relates to #11

Description

Improve the UX experience of the new PowerShell toolbox.

Proposed Changes

• Extend package list with various CLI utils
  • bat
  • eza
  • fd
  • fzf
  • gawk
  • jq
  • ripgrep
  • sed
  • zoxide
• Fix missing PowerShell modules issue by installing PowerShell as a .NET Global tool
  • Add initial PowerShell profile with the following features:
    • Oh My Posh integration with mt theme
    • Zoxide integration
    • McFly integration via CTRL-r
    • PSReadline integration
    • PSFzf integration via CTRL-t and CTRL-f
• Autocomplete for Azure CLI
• Autocomplete for .NET (dotnet cli)
• Update README

Notes

The initial launch of pwsh will take longer than usual since some utils need to be downloaded.

[lambdaclan]

I think this is now ready for merge. Since the last review I made some adjustments.

I was particularly worried about copying the PowerShell profile to the user home since the user might already have a profile. If used with distrobox without a custom home that could have overridden their custom profile. Now I am correctly using the top level profile that will only get executed if the user does not already have any profiles.

Furthermore, keeping the same thought as above I changed the folder where the shell themes get installed to avoid polluting the user's home directory.

Lastly, I did some config updates to the history viewer to display more results out of the box.

It would be great if someone can test this to get some feedback but for me, it works quite well as an initial template that can be extended later on.