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/proto/src/proto.rs

@@ -336,6 +336,8 @@ messages!(
     (RenameDevServer, Foreground),
     (OpenNewBuffer, Foreground),
     (RestartLanguageServers, Foreground),
+    (LinkedEditingRange, Background),
+    (LinkedEditingRangeResponse, Background)
 );
 
 request_messages!(
@@ -376,6 +378,7 @@ request_messages!(
     (GetReferences, GetReferencesResponse),
     (GetSupermavenApiKey, GetSupermavenApiKeyResponse),
     (GetTypeDefinition, GetTypeDefinitionResponse),
+    (LinkedEditingRange, LinkedEditingRangeResponse),
     (GetUsers, UsersResponse),
     (IncomingCall, Ack),
     (InlayHints, InlayHintsResponse),
@@ -475,6 +478,7 @@ entity_messages!(
     InlayHints,
     JoinProject,
     LeaveProject,
+    LinkedEditingRange,
     MultiLspQuery,
     RestartLanguageServers,
     OnTypeFormatting,