Specify image sizes in img tag

[argilo]

The telemetry table often displays with a scrollbar when initially loaded, partially obscuring the final row:

Resizing the browser window causes the table to snap back to the correct height.

The problem occurs because the SondeHub and Radiosondy icons are not loaded until after the table is rendered. They are large enough to cause the table rows to expand. Adding explicit height and width attributes allows the browser to determine the final cell size before the images are loaded. The telemetry table then renders correctly on the initial page load: