[VSCode extension] Don't create "lock files" in the user's project folders

### Apache NetBeans version

Apache NetBeans 15

### What happened

NetBeans creates files named `.LCK~` in my project folders. I don't know the purpose of those lock files, but I doubt VS Code or other tools will recognize/respect those lock files. And if this is solely for NetBeans' internals, I'd expect it to create those lock files in its own private extension storage somewhere, not in my project folders.

### How to reproduce

Opening a `pom.xml` file should be sufficient to get an accompanying `.LCKpom.xml~` to appear.

### Did this work correctly in an earlier version?

No / Don't know

### Operating System

Windows 11

### JDK

openjdk 20-ea+22-1594 from https://jdk.java.net/20/

### Apache NetBeans packaging

Apache VSNetBeans for VSCode

### Anything else

Previously reported as [NETBEANS-5402](https://issues.apache.org/jira/browse/NETBEANS-5402)

FWIW, a quick search reveals that the code related to lock files is in the package [`org.netbeans.modules.masterfs.filebasedfs.fileobjects`](https://github.com/apache/netbeans/blob/master/platform/masterfs/src/org/netbeans/modules/masterfs/filebasedfs/fileobjects/).


### Are you willing to submit a pull request?

Yes

### Code of Conduct

Yes