Updated the biome_check and biome_ci function to correctly pass all arguments to the biome command.
This ensures that multiple arguments provided to biome_flags are properly forwarded.

The previous implementation ($1) only passed the first argument to biome, ignoring any additional arguments. Using $@ expands to all positional parameters, preserving multi-argument functionality.

# Before: Only "arg1" was passed
# biome_flags: --changed --since=REF
biome check --colors=off --write --changed 2>&1 1>/dev/null

# After: All arguments are passed
# biome_flags: --changed --since=REF
biome check --colors=off --write --changed --since=REF 2>&1 1>/dev/null