Default style of canvas element

[skybber]

Aladin modifies default style of all canvases on the page:

canvas {
    image-rendering: optimizeSpeed;
    image-rendering: -moz-crisp-edges;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: -o-crisp-edges;
    image-rendering: pixelated;
    -ms-interpolation-mode: nearest-neighbor;
}

It would be better to have a selector for the Aladin canvas otherwise it worsens the rendering quality (at least in FF/windows11) in non Aladin canvases.