Remove regionized leveldb 32x32 and 64x64

these produce such small file sizes on average that the DB logs would probably take up a significant fraction of the world's footprint.
My gut instinct is that 128 will probably be the sweet spot, as on average it should sit well below the threshold for level 3 compactions, and most worlds would likely fit into a single DB.
256 is probably not worthwhile, but might be worth trying.

src/world/format/io/WorldProviderManager.php

@@ -53,7 +53,7 @@ public function __construct(){
 
 		//any arbitrary size is supported, but powers of 2 are best
 		//these are the most likely to be useful
-		foreach([32, 64, 128, 256] as $regionLength){
+		foreach([128, 256] as $regionLength){
 			$this->addProvider(new WritableWorldProviderManagerEntry(
 				fn(string $path) => RegionizedLevelDB::isValid($path, $regionLength),
 				fn(string $path, \Logger $logger) => new RegionizedLevelDB($path, $logger, $regionLength),