fix: fix scripting error when trying to use health item.

[zicklag]

Updates to use the new namespace for the wrapValueRef function in bevy_mod_js_scripting.

Fixes: #295

[odecay]

bors merge

[bors[bot]]

Build succeeded:

• Check Rust formatting
• Clippy correctness checks (wasm32-unknown-unknown, web-target)
• Clippy correctness checks (x86_64-unknown-linux-gnu, target)