Optimize code setup and flow

[shilec]

Refactor XWidget initialization and custom View configuration to simplify usage, enable dynamic settings, and improve code elegance.

This PR introduces extension functions for XWidget injection, makes the @XWidgetView annotation's package name optional (with auto-detection), and implements a configurable design for AreaSelectView and PositionSelectView using dedicated config classes and a manager. These changes significantly reduce boilerplate and allow for more flexible and maintainable UI customization.

---

 

[cursor]

Cursor Agent can help with this pull request. Just @cursor in comments and I'll start working on changes in this branch.
_{Learn more about Cursor Agents}