feat: Include timer initiation instructions

[bryanlundberg]

What does this PR do? Add timer initiation instructions depending if its in phone "Tap" for PC press "Space" Limited to the 1st solve display

Screenshots or GIFs (if applicable) after:

https://github.com/bryanlundberg/NexusTimer/assets/119996547/dcfcb5d8-b7ca-4c77-93d0-77c42cb28921

By submitting this PR, I confirm that:

• [x] I have reviewed my code and believe it is ready for merging.
• [x] I understand that this PR may be subject to review and changes.
• [x] I agree to abide by the code of conduct and contributing guidelines of this project.

[bryanlundberg]

Pending include translations

• Press 'Space'
• Tap to start