Vanilla Backpacks: RS Pack V0.8.1

Vanilla Backpacks v0.8.1 Beta — Resource Pack

- Fixed corrupted accents, separators and Spanish grammar across all 240 backpack variants.
- Replaced untranslated color names with proper English names.
- Improved inventory labels, navigation text, help messages and pack descriptions.
- Added explicit en_GB support and consistent es_ES/es_MX translations.
- Revised the English and Spanish 24-page guide, including branding and command examples.
- Clarified that bedrolls are cosmetic and provide no sleeping or additional storage.
- Corrected the guide's chest artwork in English, Spanish and French, matching Bedrock's inventory orientation.
- Reduced repeated backpack geometry definitions from 720 to 12 and render controllers from 480 to 2.
- Preserved backpack shapes, UVs, textures and storage-tier appearances.
- Updated pack versions and dependencies to 0.8.1.

Requires Vanilla Backpacks Behavior Pack v0.8.1.