[FEAT] Detect if sinit (simple init; suckless init) is used as System Init.

### Description

When sinit merges into `/usr/bin/init` file, fastfetch declares it as "init", not as "sinit".
Feature should check if sinit System Init is used.

### Motivation

As much as I know "sinit" doesn't have such Feature to show its Version or Manifest.

### Additional context

_No response_