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>

assets/settings/default.json

@@ -131,7 +131,14 @@
   // The default number of lines to expand excerpts in the multibuffer by.
   "expand_excerpt_lines": 3,
   // Globs to match against file paths to determine if a file is private.
-  "private_files": ["**/.env*", "**/*.pem", "**/*.key", "**/*.cert", "**/*.crt", "**/secrets.yml"],
+  "private_files": [
+    "**/.env*",
+    "**/*.pem",
+    "**/*.key",
+    "**/*.cert",
+    "**/*.crt",
+    "**/secrets.yml"
+  ],
   // Whether to use additional LSP queries to format (and amend) the code after
   // every "trigger" symbol input, defined by LSP server capabilities.
   "use_on_type_format": true,
@@ -354,6 +361,9 @@
   "show_call_status_icon": true,
   // Whether to use language servers to provide code intelligence.
   "enable_language_server": true,
+  // Whether to perform linked edits of associated ranges, if the language server supports it.
+  // For example, when editing opening <html> tag, the contents of the closing </html> tag will be edited as well.
+  "linked_edits": true,
   // The list of language servers to use (or disable) for all languages.
   //
   // This is typically customized on a per-language basis.