chore: Use isDevEnv() and isTestEnv() (#9264)

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>
Co-authored-by: Mark Tolmacs <mark@lazycat.hu>

packages/excalidraw/scene/Scene.ts

@@ -1,6 +1,5 @@
 import throttle from "lodash.throttle";
 
-import { ENV } from "../constants";
 import { isNonDeletedElement } from "../element";
 import { isFrameLikeElement } from "../element/typeChecks";
 import {
@@ -10,7 +9,7 @@ import {
 } from "../fractionalIndex";
 import { getElementsInGroup } from "../groups";
 import { randomInteger } from "../random";
-import { arrayToMap } from "../utils";
+import { arrayToMap, isDevEnv, isTestEnv } from "../utils";
 import { toBrandedType } from "../utils";
 
 import { getSelectedElements } from "./selection";
@@ -57,14 +56,10 @@ const getNonDeletedElements = <T extends ExcalidrawElement>(
 
 const validateIndicesThrottled = throttle(
   (elements: readonly ExcalidrawElement[]) => {
-    if (
-      import.meta.env.DEV ||
-      import.meta.env.MODE === ENV.TEST ||
-      window?.DEBUG_FRACTIONAL_INDICES
-    ) {
+    if (isDevEnv() || isTestEnv() || window?.DEBUG_FRACTIONAL_INDICES) {
       validateFractionalIndices(elements, {
         // throw only in dev & test, to remain functional on `DEBUG_FRACTIONAL_INDICES`
-        shouldThrow: import.meta.env.DEV || import.meta.env.MODE === ENV.TEST,
+        shouldThrow: isDevEnv() || isTestEnv(),
         includeBoundTextValidation: true,
       });
     }