Add guide on real world scenarios for PowerToys

Summary of the Pull Request

This pull request adds a new guide titled "Boost Your Productivity with Microsoft PowerToys" The guide showcases various use cases where PowerToys can streamline workflows and increase efficiency for users. It includes practical examples and step-by-step instructions for using features like FancyZones, PowerRename, Color Picker, and PowerToys Run.

This guide aims to help both new and existing users understand how PowerToys can benefit their specific workflows by providing practical examples. It includes instructions and screenshots to illustrate each use case.

PR Checklist

• [x] Closes: #33327
• [ ] Communication: I've briefly discussed this with a community member already. I went ahead and created this change to better explain my proposal, although has yet to be approved.
• [x] Dev docs: Added/updated
• [ ] Documentation updated: If checked, please file a pull request on our docs repo and link it here: #xxx

Detailed Description of the Pull Request / Additional comments

This guide is designed to bridge the gap between feature awareness and practical application, helping users to fully leverage the tools available to them in PowerToys. The detailed steps and screenshots included make it easy for users to follow along and implement these productivity enhancements.

Validation Steps Performed

The guide has been manually tested to ensure that all steps are accurate and the screenshots align with the described tools.

@microsoft-github-policy-service agree

@crutkas @ethanfangg

this is very interesting, though arguably, our microsoft learn docs and OOBE/SCOOBE should be the spot to sufficiently explain this information, but maybe we need to rethink OOBE/SCOOBE flows if this is felt like a needed explainer -- im not convinced if throwing up an additional markdown doc on the repo is the best solution we have to this problem, but open to discussion