Off by one bug in newv32?

[Pyrolistical]

I found your repo in the Zig Discord while learning how to transfer strings from js to zig. Thanks for that btw. Your code really helped me.

While reading your code I think I might have found a bug?

wisp/web/wisp.js

Lines 105 to 106 in b12b8af

	const buf = this.api.wisp_alloc(this.heap, 4 * arr.length)
	const mem = new Uint32Array(this.api.memory.buffer, buf, arr.length)

In allocStrings +1 is added to the lengths in order to account for the sentinel value, but is missing in newv32.