Use unique ids in call_server_method

[patkub]

Tested this in Chrome console, not on Steam Deck yet.

// test
console.log(uuidv4());console.log(uuidv4());console.log(uuidv4());
// 08ad8294-06af-4f3c-9bfb-b1cace537df3
// ae64aa70-8d9d-4ef9-815f-c4198584eb1a
// 266f2f27-d774-4913-b984-8c4ddba004e6

console.log(new Date().getTime());console.log(new Date().getTime());console.log(new Date().getTime());
// 1652143359237
// 1652143359237
// 1652143359237

fixes #53

[NGnius]

Looks like this would fix the race condition when that function is called too quickly as well. Thanks for putting in the work!

[patkub]

That was the intention, linked it to the issue.