Zoom and Pan: simplify getElements (it's not actually async)

    let mouseX, mouseY;

    let activeElement;

    async function getElements() {

        const elements = await Promise.all(

            Object.values(elementIDs).map(id => gradioApp().querySelector(id))

        );

        return Object.fromEntries(

            Object.keys(elementIDs).map((key, index) => [key, elements[index]])

        );

    }

    const elements = await getElements();

    const elements = Object.fromEntries(Object.keys(elementIDs).map((id) => [

        id,

        gradioApp().querySelector(elementIDs[id]),

    ]));

    const elemData = {};

    // Apply functionality to the range inputs. Restore redmask and correct for long images.