Fix self-closing div tags

[mhkeller]

Svelte 5 throws a warning if you use self-closing div tags:

node_modules/svelte-highlight/LineNumbers.svelte:48:14 Self-closing HTML tags for non-void elements are ambiguous — use `<div ...></div>` rather than `<div ... />`
node_modules/svelte-highlight/LineNumbers.svelte:57:14 Self-closing HTML tags for non-void elements are ambiguous — use `<div ...></div>` rather than `<div ... />

It would help cut down on warning messages I'm getting (and other folks will get in the future) by adding a </div> where needed.

[metonym]

Thank you for flagging. I will take a look.

[metonym]

Fixed in v7.6.1

[mhkeller]

Thanks for putting this in so quickly!