Screentext

# ScreenText 4.5

## New Features
- **Background textures**: new `backgroundtexture` option next to `enablebackground` / `disablebackground`. Use any PNG or GIF as the background of texts, timers and counters, with its own `bgopacity` and `bgscale`.
- **Texture path autocomplete**: press Tab to see every texture in your resource packs (`assets/screentext/`) and in `config/screentext/textures/`.
- **60+ new placeholders**: position, biome, health, XP, armor, speed, status flags, held items and any inventory slot, potion effects, world time, weather and more. They resolve on the client, so they update every frame.

## Improvements
- Textures now preload on startup, avoiding lag spikes the first time they are shown.
- Background textures are saved with local displays and restored after restarting the game.

## Fixes
- Fixed command feedback not showing in chat on Forge.