Code quality and maintainability improvements for the Video.js Data SDK

The Video.js Data SDK ships a round of code-quality fixes for safer global access and better maintainability, along with an updated Data Core dependency.

What’s new:

• Safer global access: window references now use globalThis.window, and the global parseInt was replaced with Number.parseInt.

• Reduced function nesting: nested request helpers were hoisted to the top level to lower nesting depth.

• Stronger typing and clearer code: Function type usages were replaced with explicit function signatures, intentionally empty catch blocks now carry explanatory comments, and conditionals were simplified with optional chaining.

• Updated Data Core dependency: @fastpix/video-data-core was upgraded to ^1.0.8.