When the component is loaded, it pushes the scrolling back down. We should add an option that allow the component to have a overflow:scrolling.

Tasks

• The user does not set any parameters (e.g. pdf_viewer(file)) -> we unwrap the PDF (no scroll bars, every page one after the other)
• The user does set height = 700 (absolute number) -> then we show the scrollbars and limit the window to the height
• The user does set height = 80% (relative number) -> same as previous, show the scrollbars and limit the window to the height because streamlet.setFrameHeight doesn't support relative number