Implement SvelteKit playground project

[Reversean]

To test hawk SDK integration, it's proposed to implement playground app on SvelteKit.

Create playground project to test and demonstrate integration.

Tasks:

• Initialize SvelteKit playground: /packages/svelte/playground/svelte-kit
• Add leverages to throw errors during runtime
• Configure to use local @hawk.so/javascript as dependency
• Add README.md in /packages/svelte/playground/svelte-kit explaining project

Acceptance Criteria:

• Playground start successfully
• @hawk.so/javascript may be imported in playground sources