v0.13.39

Features:

• Presets
  • Added cow preset
  • Added block preset
• You can now comment/uncomment JSON; closes #137
• You can now double click on the welcome screen to create a file

Changes:

• Changed preset file path parsing
• Added file_uuid to FileInspector

Fixes:

• Fixed custom item components not updating correctly
• Delete custom syntax upon deleting item
• Fixed error upon selecting parent node
• Fixed #101
• Fixed #100