docs(router): canMatch route guard method signature update (#49140)

Very cosmetic, but it might be necessary : 

I updated the ```canAccess``` method second signature name and type in the provided sample. As it stands, it triggers `TS(2345):  Argument of type 'Route' is not assignable to parameter of type 'string'`.
PR Close #49140

packages/router/src/models.ts

@@ -915,7 +915,7 @@ export type CanDeactivateFn<T> =
  * ```
  * class UserToken {}
  * class Permissions {
- *   canAccess(user: UserToken, id: string, segments: UrlSegment[]): boolean {
+ *   canAccess(user: UserToken, route: Route, segments: UrlSegment[]): boolean {
  *     return true;
  *   }
  * }