[Feature]: Horizontal auto scroll on Canvas

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Summary

we have vertical auto scroll where the canvas scrolls once the user's mouse pointer in almost at the top or bottom of the canvas. Need the same implementation for the horizontal as well since we have a docked property pane, canvas overflows for layouts that are bigger than the amount of screen width available.

### Why should this be worked on?

This will enhance UI building experience. It is difficult to build without auto scroll because moving widgets and resizing them will become easy with auto scroll.