[BUG] Mosviz: MosvizExample notebook images have incompatible RA and Dec values

[javerbukh]

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Describe the bug In the MosvizExample notebook, the images used seem to have RA and Dec values that are incompatible with their associated spectra. When you click a row besides the first one, and image appears and then cuts to black. This is because the image viewer is attempting to zoom to the spectra's RA and Dec value, which is not in the image's bounding box. We need to find alternate images to use that do fall into the correct RA and Dec range.