Show system vulnerabilities

[orhun]

Is your feature request related to a problem? Please describe.

flawz is initially designed to only browse the security vulnerabilities. However, we can expand the scope of this project by also showing the vulnerabilities found in the system.

Describe the solution you'd like

Add a new tab to the TUI called "system". Upon switching to this tab show the security vulnerabilities on the current system and related/affected packages.

However, this will be a highly distro-dependent solution. For example, we can use arch-audit on Arch Linux for querying the vulnerabilities and pkg-audit for other distros.

Describe alternatives you've considered

We can also support this via SSH somehow which will be useful to check the vulnerabilities on remote servers.

Additional context

Thanks @kpcyrd for the idea!