Segmentation results remain on display after switching dataset

[taxe10]

If we are visualizing dataset A and we select an inference job to load the segmentation results for dataset A, and we then select a different dataset B, the interface displays the new dataset B, but keeps the segmentation results of dataset A. It probably makes sense to reset the selection of the inference model dropdown and disable the toggle to display segmentation results, when a new dataset is detected. Also, perhaps we can offer the user the option to clear existing annotations with a pop-up window when switching the dataset.