PWM and Form validation

• Added PWM controls and settings to AxeOs
• Manual fan speed
• Automatic fan speed
• Added additional validation in the settings form
• Added quick-link for public-pool users on home screen

What's Changed

• Save "Best Difficulty" scores into NVS #20 by @tommywatson in #47
• Fixes mining.configure order #50 by @checksum0 in #51

New Contributors

• @tommywatson made their first contribution in #47
• @checksum0 made their first contribution in #51

Full Changelog: v2.0.1...v2.0.2