Fix n_embd for merge_qkv() + cleaner code#34

Thireus merged 1 commit intotr/qwen3-vl-mergedThireus/ik_llama.cpp:tr/qwen3-vl-mergedfrom

tr/qwen3-vl-cleanThireus/ik_llama.cpp:tr/qwen3-vl-cleanCopy head branch name to clipboard