fix(viewports): The display of linked viewports during drag and drop has a race (#3286)

* fix: The display of linked viewports during drag and drop has a race

* PR review comments

* fix: Segmentation display two up

* Removing console logs

* Fix the blank viewport can have stuff added to it

* Fix the null name on HP module

* Fix the navigate to initial image

* Fix the nth interleave loader

* Fix the unit tests

* PR comments - docs mostly

* fix: Exception thrown on change displayset after double click

extensions/cornerstone-dicom-seg/src/utils/_hydrateSEG.ts

@@ -31,8 +31,6 @@ async function _hydrateSEGDisplaySet({
     displaySetInstanceUID
   );
 
-  viewportGridService.setDisplaySetsForViewports(updatedViewports);
-
   // Todo: fix this after we have a better way for stack viewport segmentations
 
   // check every viewport in the viewports to see if the displaySetInstanceUID
@@ -50,7 +48,7 @@ async function _hydrateSEGDisplaySet({
     );
 
     if (shouldDisplaySeg) {
-      viewportGridService.setDisplaySetsForViewport({
+      updatedViewports.push({
         viewportIndex: index,
         displaySetInstanceUIDs: viewport.displaySetInstanceUIDs,
         viewportOptions: {
@@ -62,6 +60,9 @@ async function _hydrateSEGDisplaySet({
     }
   });
 
+  // Do the entire update at once
+  viewportGridService.setDisplaySetsForViewports(updatedViewports);
+
   return true;
 }