Incorrect warning of globally declared namespace not defined ('gapi' is not defined)

[jacob-8]

Describe the bug
When using gapi via global script, and then type definitions are added to the global.d.ts file, gapi is recognized as a valid namespace in the script block but language tools gives an error when used in the template (like an await block or on:click inline function. Things still work as expected, but there is a warning, 'gapi' is not defined svelte(missing-declaration)

To Reproduce

• add <script src="https://apis.google.com/js/api.js" type="text/javascript"></script> to app.html
• npm i -D @types/gapi.auth2 @types/gapi.client.calendar
• add /// <reference types="gapi.client.calendar" /> to global.d.ts
• Use await gapi.client.calendar.calendarList.list() in script block and inline {#await} block to see warning in just latter case.

Expected behavior
No warning.

Screenshots

System (please complete the following information):

• OS: Windows
• IDE: VSCode
• Plugin: "Svelte for VSCode"

Additional context
Low priority as the typings still work and I can just use <!-- svelte-ignore missing-declaration --> but I thought you should know.

[dummdidumm]

This is a warning from the Svelte compiler. It doesn't know that there's a global with that name. Currently (and I guess there won't be) there's no way to tell the compiler about additional globals, so ignoring/silencing the error is the best option. Once #855 is tackled that would be a way to deal with it globally.

[AlexGalays]

Just in case, I have the same issue and it only does it in the template part, not in the scripts.