Not Enough Glyphs 1.21.1 - 4.4.0

• Renamed Book Threads into Book Covers.
• Spellbinders now open the Glyph Unlock Screen instead of being placed on the Scribing Table on interaction.
• Fixed missing lang for empty spellbinder.
• Renamed Reverse Direction into Redirect Placement to better reflect the functionality.
• Redirect Placement is now more consistent with Rotate, supporting Sensitive and Amplify to allow for more precise control over the redirection.