Add access to the Element attributes related to scrolling

[ASR-ASU]

Add the capability to access to the following Element attributes related to the scrolling:

• https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollHeight
• https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollLeft
• https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollTop
• https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollWidth

[ealmloff]

Thanks for adding these methods! They would be great to support in dioxus.

Instead of exposing the browser methods directly, we could merge some of the methods into more rusty versions like we do with other event methods today. Maybe something like this:

• get_scroll_offset that returns Vector2D
• get_scroll_size that returns Size2D

[ASR-ASU]

Should I rather use (or add new ones) the primitives defined by the https://github.com/DioxusLabs/dioxus/blob/main/packages/html/src/geometry.rs instead of euclid types directly?

[ealmloff]

Should I rather use (or add new ones) the primitives defined by the https://github.com/DioxusLabs/dioxus/blob/main/packages/html/src/geometry.rs instead of euclid types directly?

Reusing the unit type definitions from geometry would be great

[ealmloff]

Thank you, this looks great!