Port forward to ts-rs 8.1 (currently: git only; waiting for 8.1.1+) (#2443)

Port forward to ts-rs 8.1

We're just waiting on a release that includes a PR that we sent[1] for this
to use the cargo version. For now we'll have to use the git release.

[1]: c5109a00e4

src/lib/tauriFS.ts

@@ -45,7 +45,7 @@ export function sortProject(project: FileEntry[]): FileEntry[] {
     if ('children' in fileOrDir && fileOrDir.children !== undefined) {
       return {
         ...fileOrDir,
-        children: sortProject(fileOrDir.children),
+        children: sortProject(fileOrDir.children || []),
       }
     } else {
       return fileOrDir