Monaspace-NF(,-Mono,-Propo): Add version 3.1.0

[jonz94]

Related to #260

[github-actions[bot]]

All changes look good.

Wait for review from human collaborators.

Monaspace-NF-Mono

• [x] Description
• [x] License
• [x] Hashes
• [x] Checkver
• [x] Autoupdate

Monaspace-NF-Propo

• [x] Description
• [x] License
• [x] Hashes
• [x] Checkver
• [x] Autoupdate

Monaspace-NF

• [x] Description
• [x] License
• [x] Hashes
• [x] Checkver
• [x] Autoupdate