feat: Move and add functions

- Add global function randomFloatFrom()
- Move getRandomColor() to app

source/code/drag.js

@@ -113,15 +113,3 @@ class NewDiv {
     space.appendChild(this.element);
   }
 }
-
-// Function to generate a random color
-function getRandomColor() {
-  const letters = '0123456789ABCDEF';
-  let color = '#';
-
-  for (let i = 0; i < 6; i++) {
-    color += letters[Math.floor(Math.random() * 16)];
-  }
-
-  return color;
-}