Add store and attrs types as generics (strict)

[AlistairDavidson]

Currently the store and attrs are typed as Record<string, any> and Record<string, string> respectively.

This change allows them to be typed more strictly. This PR is the strict version of the change, defaulting them to unknown. This is the preferred type as it is correct, however the change will not be backwards-compatible. A backwards-compatible patch has also been submitted.

// /api/hello.mts
import type { EnhanceApiFn } from "@enhance/types";

export interface HelloStore {
  name: string;
}

export const get: EnhanceApiFn<HelloStore> = async (req) => ({
  json: {
    name: "Alice"
  }
});

// /pages/hello.mts
import { EnhanceElemFn } from "@enhance/types";
import { HelloStore } from "../api/hello.mjs";

const HelloPage: EnhanceElemFn<unknown, HelloStore> =
    ({ html, state: { store: { data} } }) =>
        html`
            <say-hello salutation="hello"></say-hello>
        `;

export default HelloPage;

// /elements/say-hello.mts
import { EnhanceElemFn } from "@enhance/types";
import { HelloStore } from "../api/hello.mjs";

export interface SayHelloAttrs {
  salutation: string;
}

const SayHello: EnhanceElemFn<SayHelloAttrs, HelloStore> =
	({ html, state: { store: { name }, attrs: { salutation } } }) => html`
		<p>${salutation}, ${name}!</p>
	`

export default SayHello;