BUG: renaming is limited to a single file

[dennypenta]

Describe the bug

A symbol renaming works is limited to a single file

To Reproduce

Steps to reproduce the behavior:

• Have a struct/class defined
• create its reference in another file
• call rename

Expected behavior

A symbol is renamed in all the files - where it's defined and referenced.

Actual behavior

A symbol is renamed in a single file where it's defined.

Configuration

        "zls": {
          "type": "stdio",
          "command": "mcp-language-server",
          "args": [
            "--workspace",
            "directory",
            "--lsp",
            "zls"
          ],
          "env": {}
        },

Additional context
prompt example: use zls mcp to rename Block struct in @src/store/inmem/block.zig to RawBlock.
My guess is workspace edit client capabilities are not defined explicitly so that LSP falls back to a single file renaming, but Im not sure.
I can try configuring client if you accept a PR