contour layers not rendered on other images if using a matched secondary image as data source

[kswang1029]

Describe the bug
If we load five images and matched them spatially in a 2x2 layout with the 5th image as active, then if we use the 5th image to generate contours and switch to view the 1st to the 4th images in the previous page, we will not see the contour layer on each panel unless we set another active image in the view or apply zoom/pan to trigger re-rendering.

To Reproduce
Steps to reproduce the behavior:

1. load five matchable images and match them
2. set the 5th image as active and use it to generate a contour layer
3. switch to the previous page to view images 1 to 4.
4. we should see contour layers on each panel but they are not rendered without triggering a re-render.

Expected behavior
After step3 above, we should see contour layers are rendered.

Platform info (please complete the following information):

• OS [e.g. macOS Monterey]: macOS Ventura
• Browser [e.g. chrome, safari, electron app]: chrome
• Browser version [e.g. 22]: 120
• Backend branch [e.g. dev, v3b2 release]: dev (not v4-stable)
• Frontend branch [e.g. dev, v3b2 release]: dev (not v4-stable)