Document that `invalidate` on current URL reloads the page

[tv42]

Describe the problem

The docs for invalidate at https://kit.svelte.dev/docs/modules#$app-navigation-invalidate say

Causes any load functions belonging to the currently active page to re-run if they fetch the resource in question.

The way it is written, it sounds like "if load calls fetch with URL X, then invalidate(X) reloads the page".

However, observed behavior is that you can also invalidate the page itself.

https://stackoverflow.com/questions/71743867/refresh-current-page-in-sveltekit

I think this should be explicitly documented, both for discoverability and to say that that is the intended behavior, not a random side effect that might go away.

Describe the proposed solution

Causes any load functions belonging to the currently active page to re-run if they fetch the resource in question, or if the current page URL is invalidated.

Alternatives considered

Do only what the docs promised, but then something else needs to provide the reload functionality -- not a good idea, and breaks existing code.

Importance

would make my life easier

Additional Information

No response