`@lute/fs` `fs.open(path, "w")` throws an error when file does not exist

[Gravemind1142]

Not sure what are the expected behaviours for these handle modes are "r" | "w" | "x" | "a" | "r+" | "w+" | "x+" | "a+", but if this is based on C std::fopen then using "w" should create the file if it doesn't exist. Right now it throws a no such file or directory error.

[Vighnesh-V]

To unblock yourself now, can you use w+? This is our bad - both w and w+ need to create a file if none exists, but currently only w+ adds a O_CREATE flag