win: relocate service disabling and improve docs

This commit improves the organization of service disabling scripts by
relocating the "Disable OS services" section. It improves documentation
and script/category titles to enhance clarity and accessibility for the
divers user base of privacy.sexy, including those with non-technical
backgrounds.

Key changes:

- Move "Disable OS services" to "Remove bloatware" to simplify
  navigation and prepare for new categories (for #26).
- Rename "Disable OS services" to "Disable non-essential services"
  for better understanding.
- Relocate "Disable NetBios for all interfaces" to "Security
  improvements" due to its relevance to security rather than bloatware.
- Improve documentation.
- Simplify script names by removing technical jargon, making them more
  more accessible.