Update status message to be clearer and more concise

Changed from "Ready. Enter a song to run it through our Wario 16-Bit Engine and make a new version." to "Ready. Search any song to make a Game Boy version."

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/main.ts

@@ -215,7 +215,7 @@ class MotifApp {
     this.currentMIDI = null;
 
     this.setState('idle');
-    this.updateStatus('Ready. Enter a song to run it through our Wario 16-Bit Engine and make a new version.');
+    this.updateStatus('Ready. Search any song to make a Game Boy version.');
 
     try {
       window.scrollTo({ top: 0, behavior: 'smooth' });