pass params and searchParams into template files

[PHILLIPS71]

Goals

1. adds params and searchParams to the template.js file's props

Background

It's understandable that the layout file doesn't receive route parameters since layouts aren't re-rendered during navigation. However, from what I understand, templates are re-rendered between routes, so it would make sense for route parameters to be passed to the template.

It simplifies situations where you need to render content based on route parameters, and handling it on the server offers a much better user experience. It's also far easier, as it eliminates concerns about managing loading states or content skeletons.

Proposal

It should work like the page file, where both params and searchParams are passed in.