File name misspellings and suggestions

[Tech-Tac]

Rename:

• "Unavailiable" (typo) to "Unavailable"
• "Dng1" and "Dng2" to "Diagonal 1" and "Diagonal 2"
• "Vert" and "Horz" to "Vertical" and "Horizontal"
• "Cross" to "Crosshair"

This naming is also present in your other cursors.