fix: ensure proper type inference of APILoadingStatus (#747)

Added `as const` to ensure that `APILoadingStatus` is the intended union type instead of `string`

Author: NicoToff

src/libraries/api-loading-status.ts

@@ -4,6 +4,6 @@ export const APILoadingStatus = {
   LOADED: 'LOADED',
   FAILED: 'FAILED',
   AUTH_FAILURE: 'AUTH_FAILURE'
-};
+} as const;
 export type APILoadingStatus =
   (typeof APILoadingStatus)[keyof typeof APILoadingStatus];