fix: address NeoForge GUI runtime issues

Avoid passing null narration text to GuiHintTextField, emit item components for custom item display/enchantment/attribute data, and update the player preview render call for the 1.21.1 InventoryScreen API.

Validated with ./gradlew.bat build --no-daemon.

gradle.properties

@@ -10,7 +10,7 @@ author = Exopandora
 # NeoForge
 neo_version = 21.1.225
 loader_version_range = [4,)
-neoforge_compatible_minecraft_versions = 1.21.1
+neoforge_compatible_minecraft_versions = 1.21,1.21.1
 
 # Publishing
 curse_project_id = 228970