Resolve a few TODOs

- Update ForgeConfigAPI to the latest version, to fix the race
   condition.
 - Move WirelessNetwork lifecycle management to ServerContext.
 - Some doc fixes.

projects/core/src/main/java/dan200/computercraft/core/apis/handles/ByteBufferChannel.java

@@ -33,11 +33,7 @@ public class ByteBufferChannel implements SeekableByteChannel {
 
         var remaining = Math.min(backing.limit() - position, destination.remaining());
 
-        // TODO: Switch to Java 17 methods on 1.18.x
-        var slice = backing.slice();
-        slice.position(position);
-        slice.limit(position + remaining);
-        destination.put(slice);
+        destination.put(position, backing, position, remaining);
         position += remaining;
         return remaining;
     }

projects/core/src/main/java/dan200/computercraft/core/computer/ComputerThread.java

@@ -391,7 +391,7 @@ public final class ComputerThread {
      */
     long scaledPeriod() {
         // FIXME: We access this on other threads (in TimeoutState), so their reads won't be consistent. This isn't
-        //  "criticial" behaviour, so not clear if it matters too much.
+        //  "critical" behaviour, so not clear if it matters too much.
 
         // +1 to include the current task
         var count = 1 + computerQueue.size();