fix: use globalThis for event listeners in connectionObservable

Author: ThornWalli

packages/observables/src/dom/window.ts

@@ -2,8 +2,8 @@ import { fromEvent, merge, of, map, shareReplay } from 'rxjs';
 
 export const connectionObservable = merge(
   of(null),
-  fromEvent(global, 'online'),
-  fromEvent(global, 'offline')
+  fromEvent(globalThis, 'online'),
+  fromEvent(globalThis, 'offline')
 ).pipe(
   map(() => navigator.onLine),
   shareReplay(1)