Image Decoding Attribute unnkown to the language Server

[abdo643-HULK]

Describe the bug
Trying to add the decoding Attribute on the image tag makes the language server complain that it isn't a valid attribute.
VsCodes lib.dom file includes it and the intellisense autocompletes it because it knows it exists.
It works in the browser as expected because it's a native attribute

To Reproduce
Install the svelte language server.
Create a svelte file and add img tag.
Add the decoding attribute.

Expected behavior
Shouldn't show any errors.
From MDN:

decoding

Provides an image decoding hint to the browser. Allowed values:

sync

• Decode the image synchronously, for atomic presentation with other content.

async

• Decode the image asynchronously, to reduce delay in presenting other content.

auto

• Default: no preference for the decoding mode. The browser decides what is best for the user.

Screenshots

System (please complete the following information):
OS: Windows 10 Education , 20H2
IDE: VSCode
Plugin: Svelte for VSCode