Add a hook to run some code during preloading code #12544
Description
Describe the problem
Some module is large, but not compatible with SSR. So I can only import it dynamically in an onMount or if (browser) block. But I still want them to be preloaded during that page got preloaded by preloadCode or data-sveltekit-preload-code.
An example is monaco-editor.
Describe the proposed solution
Add a hook like beforePreload in $app/navigation.
Alternatives considered
For now I can only write them in on:mouseover besides data-sveltekit-preload-code or write them after preloadCode
Importance
nice to have
Additional Information
No response