Upgrade Svelte to 5.x

[ArakTaiRoth]

Info

We are currently on Svelte 4.x. We should probably upgrade to Svelte 5.x to gain any additional benefits that might give:

1. Vastly decreased size (up to 40%)
2. Introduction of the $host rune. Allowing immediate access to native host element (would dramatically improve communication between child and parent components
3. Using the new $props rune allows for us to remove <svelte:options> from our code
4. Allows functions as props, no more need for CustomEvents
5. Native Typescript support

This will also allow us to upgrade Vite (which is required for a security fix)

Acceptance Criteria:

1. Svelte upgrade to version 5
2. New stories created to take advantage of the above options