Could you please add support for Svelte syntax highlighting. I tried to use HTML markup syntax but it seems to break on some tags like `{# each}` and `{#if}`. Probably because of `{#`.

I've included screenshot and code snippet that may help represent the current situation.

Docs: https://svelte.dev/docs/introduction


```html <script> let count = 0;

function increment() { count += 1; } </script>

<button on:click={increment}> Clicked {count} {count === 1 ? 'time' : 'times'} </button>

{#if count > 10} <p>{count} is greater than 10</p> {:else if count < 5} <p>{count} is less than 5</p> {:else} <p>{count} is between 5 and 10</p> {/if} ```