docs: refactor installation guide

[0xSage]

Let's separate installation from requirements. The current hardware/install guides are a bit all over the place and conflate the two

Design:

1. Guides should be driven by the user's OS. This is the starting point for most people. Like "ok I have a windows with x cpu, and y gpus, what do i need"

2. Requirements guide should address dependencies, i.e. if users wanted to chck if they have proper deps. This is because we auto-install things now, we need to be transparent about what exact requirements are.

Suggested refactoring

Installation

Refactor Prerequisites section into Requirements pages.

Everything else, keep as is.

---

Requirements

Hardware Requirements

CPU, Disk, RAM, all that (in tabs)

Should cover stuff like:

• cpu size, cpu skus, instruction sets
• disk size, etc.

OS Requirements

Mac, Windows, LInux (in tabs)

Should cover stuff like:

• os version
• npm version, etc.

GPU Requirements

NVIDIA, AMD, Silicon, Snapdragon NPU, etc. (in tabs)

Should cover stuff like:

• checking driver and sdk deps & versions
• install guide (with verification instructions)
  • gpu driver
  • cuda toolkit
  • msi
  • msisdk

[irfanpena]

Added the first cut of the requirements page. Will keep the issue up for tracking