Set console to clear on each run

starfish.js

@@ -125,6 +125,7 @@ class CodeBox {
         this.pointer = {X: 0, Y: 0};
         this.curr_direction = this.directions.EAST;
         this.outputDOM.value = "";
+        console.clear();
 
         const cbRaw = this.codeBoxDOM.value;
         const rows = cbRaw.split("\n");