allow users to share thier file templates through comunity workspace

### Description

most of the file template in Netbeans are outdated and they are useless.
I advice to remove all file template from next version and allow users to share their templates throw a community workspace. the same feature that figma has for designers.

I think this idea will enrich the content for the developers and will increase the number of Netbeans users.

and it is good if we have the same for Project Templates.

### Use case/motivation

_No response_

### Related issues

_No response_

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

No

The issue does not identify files, tests, or an entry point in NetBeans. Start by locating the existing file-template and project-template features, then determine the scope and design for a community workspace. Done would require an agreed implementation plan for sharing both template types.

Written by the indexing model from the issue text.