debug: include submodules state when taking object snapshots

Summary: In dev mode there's a button to take snapshots of jotai states. Adding submodules for convenience.

Reviewed By: evangrayk

Differential Revision: D83270096

fbshipit-source-id: cee55c2e191eba986f48ff7aeac8d7449f78e275

Author: taidaii

addons/isl/src/debug/getInterestingAtoms.ts

@@ -23,6 +23,7 @@ import {
   latestUncommittedChangesData,
   mergeConflicts,
   repositoryData,
+  submodulesByRoot,
 } from '../serverAPIState';
 
 export type UIStateSnapshot = {[key: string]: Json};
@@ -47,6 +48,7 @@ function listInterestingAtoms(): Array<AtomOrFamily> {
     uncommittedSelection,
     // These are atomFamilies.
     editedCommitMessages,
+    submodulesByRoot,
   ];
 }