Upgrade to SvelteKit stable release

[bgins]

Summary

Problem

SvelteKit has released a 1.0.0, and we aren't using it.

Impact

No immediate impact, but moving to stable brings us forward past breaking changes.

Solution

Upgrade to latest SvelteKit stable release.

[bgins]

Let's hold off on making these changes until we've merged in #89.

[bgins]

We've rolled back this upgrade but should revisit it. We uncovered a couple of issues at page load.

In Safari:

SyntaxError: Invalid character '\u20ac'
parseModule
(anonymous function)
asyncFunctionResume
(anonymous function)
promiseReactionJobWithoutPromise
promiseReactionJob

In Chrome:

We suspect Vite 4 is having issues processing special characters.

[bgins]

Turned out the first error was due to a missing meta utf-8 tag. The tag was not compiled in statically by SvelteKit. Fixed by adding the tag directly to app.html.

The second error is unrelated. Tracking that one here: oddsdk/ts-odd#459