--speak_messages TTS updated cross platform

[CyanideByte]

trafficstars

Describe the changes you have made:

--speak_messages argument updated to use cross platform package pyttsx3

Reference any relevant issues (e.g. "Fixes #000"):

• Previously used mac only 'say' command

Pre-Submission Checklist (optional but appreciated):

• [x] I have included relevant documentation updates (stored in /docs)
• [x] I have read docs/CONTRIBUTING.md
• [x] I have read docs/ROADMAP.md

OS Tests (optional but appreciated):

• [x] Tested on Windows
• [ ] Tested on MacOS
• [ ] Tested on Linux

[CyanideByte]

• Restored the if statement I didn't notice I removed before.
• Updated my poetry files to fix the merge conflict.