language servers: Fix wrong language server name (#20428)

This fixes the issue of multiple language servers showing up as `node`
in the language server logs dropdown.

It does this by changing `language_server.name()` to return the
adapter's name, not the binary name, and changing types to make sure
that we always use this.

Release Notes:

- Fixed language server names showing up only as `"node"`

---------

Co-authored-by: Sam Rose <hello@samwho.dev>
Co-authored-by: Bennet <bennet@zed.dev>

crates/extension_host/src/extension_lsp_adapter.rs

@@ -8,10 +8,9 @@ use collections::HashMap;
 use futures::{Future, FutureExt};
 use gpui::AsyncAppContext;
 use language::{
-    CodeLabel, HighlightId, Language, LanguageServerName, LanguageToolchainStore, LspAdapter,
-    LspAdapterDelegate,
+    CodeLabel, HighlightId, Language, LanguageToolchainStore, LspAdapter, LspAdapterDelegate,
 };
-use lsp::{CodeActionKind, LanguageServerBinary, LanguageServerBinaryOptions};
+use lsp::{CodeActionKind, LanguageServerBinary, LanguageServerBinaryOptions, LanguageServerName};
 use serde::Serialize;
 use serde_json::Value;
 use std::ops::Range;