Resize spectrogram when window is resized

When we resize the browser and its width gets smaller than the spectrogram image width, part of the spectrogram gets hidden. I think it needs to resize to be entirely visible in the screen.

Start by locating the frontend entry point that renders the spectrogram and reproduce the problem by narrowing the browser width below the image width. Trace how the spectrogram responds to window resizing. Done means the entire spectrogram remains visible after the browser is resized narrower.

Written by the indexing model from the issue text.