create: creative assembly

 Create Creative Assembly - Update

Added
- Added Glitchfire, a custom corrupted fire variant.
- Added Glitch & Steel, used to light Glitchfire and activate the Corrupted Lands portal.
- Added animated Glitchfire texture support.
- Added a custom Glitchfire screen overlay when standing inside Glitchfire.
- Added Corrupted Lands portal activation support.
- Added corruption spread when the Corrupted Lands portal is opened.
- Added lore-based advancements for the Corruptium progression.
- Added/fixed advancements for:
  - Repeating Command Block Fragment
  - Creative Thruster
  - Creative Vector Thruster
  - Dormant Corruptium
  - Corruptium Chunk
  - Corruptium Scrap
  - Corruptium Ingot
  - Glitch & Steel
  - Corrupted Lands Portal

Changed
- Glitchfire now behaves more like vanilla fire.
- Glitchfire now spreads Glitchfire instead of normal fire.
- Portal corruption spread is now more random and natural, similar to sculk-style spreading.
- Dormant Corruptium now requires a Netherite Pickaxe to properly mine.
- Advancement titles and descriptions have been cleaned up and given more lore.
- Corruption-related advancements now connect under the Blue Flame Awakening tab.

Fixed
- Fixed broken advancement names showing as translation keys.
- Fixed Glitchfire missing model/texture issues.
- Fixed Glitchfire sides disappearing from certain angles.
- Fixed recipe and advancement unlock issues.
- Fixed Creative Thruster, Creative Vector Thruster, and Repeating Command Block Fragment advancements.