fix: Change frontend-platform peer dependency to v2 or v3 range

Author: julianajlk

package-lock.json

@@ -67,7 +67,7 @@
     "react-transition-group": "4.4.5"
   },
   "peerDependencies": {
-    "@edx/frontend-platform": "^3.0.0",
+    "@edx/frontend-platform": "^2.0.0 || ^3.0.0",
     "@edx/paragon": ">= 7.0.0 < 21.0.0",
     "prop-types": "^15.5.10",
     "react": "^16.9.0",