lsp: Add support for linked editing range edits (HTML tag autorenaming) (#12769)

This PR adds support for [linked editing of
ranges](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#textDocument_linkedEditingRange),
which in short means that editing one part of a file can now change
related parts in that same file. Think of automatically renaming
HTML/TSX closing tags when the opening one is changed.
TODO:
- [x] proto changes
- [x] Allow disabling linked editing ranges on a per language basis.

Fixes #4535 

Release Notes:
- Added support for linked editing ranges LSP request. Editing opening
tags in HTML/TSX files (with vtsls) performs the same edit on the
closing tag as well (and vice versa). It can be turned off on a language-by-language basis with the following setting:
```
  "languages": {
    "HTML": {
      "linked_edits": true
    },
  }
```

---------

Co-authored-by: Bennet <bennet@zed.dev>

crates/collab/src/rpc.rs

@@ -548,6 +548,9 @@ impl Server {
             .add_request_handler(user_handler(
                 forward_mutating_project_request::<proto::RestartLanguageServers>,
             ))
+            .add_request_handler(user_handler(
+                forward_mutating_project_request::<proto::LinkedEditingRange>,
+            ))
             .add_message_handler(create_buffer_for_peer)
             .add_request_handler(update_buffer)
             .add_message_handler(broadcast_project_message_from_host::<proto::RefreshInlayHints>)